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143112441231 = 321979103163631
BaseRepresentation
bin1000010101001000101…
…0101000110110001111
3111200101202022021110100
42011102022220312033
54321043241104411
6145424524142143
713224313451664
oct2052212506617
9450352267410
10143112441231
115576a273321
12238a0097953
1310659654ab6
146cd8b43a6b
153ac90c6456
hex21522a8d8f

143112441231 has 96 divisors (see below), whose sum is σ = 224211353600. Its totient is φ = 87694850880.

The previous prime is 143112441217. The next prime is 143112441259. The reversal of 143112441231 is 132144211341.

It is a happy number.

It is not a de Polignac number, because 143112441231 - 27 = 143112441103 is a prime.

It is a super-3 number, since 3×1431124412313 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 143112441195 and 143112441204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143112441271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 226802286 + ... + 226802916.

Almost surely, 2143112441231 is an apocalyptic number.

143112441231 is a deficient number, since it is larger than the sum of its proper divisors (81098912369).

143112441231 is a wasteful number, since it uses less digits than its factorization.

143112441231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 998 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 143112441231 its reverse (132144211341), we get a palindrome (275256652572).

It can be divided in two parts, 14311 and 2441231, that added together give a palindrome (2455542).

The spelling of 143112441231 in words is "one hundred forty-three billion, one hundred twelve million, four hundred forty-one thousand, two hundred thirty-one".

Divisors: 1 3 9 19 57 79 103 163 171 237 309 489 631 711 927 1467 1501 1893 1957 3097 4503 5679 5871 8137 9291 11989 12877 13509 16789 17613 24411 27873 35967 38631 49849 50367 64993 73233 102853 107901 115893 149547 151101 154603 194979 244663 308559 318991 448641 463809 584937 733989 925677 947131 956973 1234867 1326331 1391427 1954207 2201967 2841393 2870919 3704601 3978993 5134447 5862621 8125387 8524179 10593859 11113803 11936979 15403341 17587863 24376161 25200289 31781577 46210023 73128483 75600867 95344731 97554493 154382353 201283321 226802601 292663479 463147059 603849963 836914861 877990437 1389441177 1811549889 2510744583 7532233749 15901382359 47704147077 143112441231