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201233142231 = 31143612324809
BaseRepresentation
bin1011101101101001101…
…1100001000111010111
3201020102021122210121220
42323122123201013113
511244111141022411
6232240100341423
720352513325602
oct2733233410727
9636367583556
10201233142231
1178384954210
12330006a4873
1315c8c948934
149a4db9b339
15537b859b06
hex2eda6e11d7

201233142231 has 32 divisors (see below), whose sum is σ = 304419920640. Its totient is φ = 117170323200.

The previous prime is 201233142197. The next prime is 201233142233. The reversal of 201233142231 is 132241332102.

It is not a de Polignac number, because 201233142231 - 217 = 201233011159 is a prime.

It is a super-4 number, since 4×2012331422314 (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201233142233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1075846 + ... + 1248963.

It is an arithmetic number, because the mean of its divisors is an integer number (9513122520).

Almost surely, 2201233142231 is an apocalyptic number.

201233142231 is a deficient number, since it is larger than the sum of its proper divisors (103186778409).

201233142231 is a wasteful number, since it uses less digits than its factorization.

201233142231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324927.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 201233142231 its reverse (132241332102), we get a palindrome (333474474333).

The spelling of 201233142231 in words is "two hundred one billion, two hundred thirty-three million, one hundred forty-two thousand, two hundred thirty-one".

Divisors: 1 3 11 33 43 61 129 183 473 671 1419 2013 2623 7869 28853 86559 2324809 6974427 25572899 76718697 99966787 141813349 299900361 425440047 1099634657 1559946839 3298903971 4679840517 6097974007 18293922021 67077714077 201233142231