Search a number
-
+
101231132031 = 32472415771721
BaseRepresentation
bin101111001000111011…
…0000111110101111111
3100200021222020022220100
41132101312013311333
53124310132211111
6114301022252143
710212413265501
oct1362166076577
9320258208810
10101231132031
1139a28375897
1217752127053
1397138b4233
144c84775d71
152977374756
hex1791d87d7f

101231132031 has 48 divisors (see below), whose sum is σ = 150300678528. Its totient is φ = 65625292800.

The previous prime is 101231132021. The next prime is 101231132071. The reversal of 101231132031 is 130231132101.

101231132031 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 311 + 320 + 31 = 666.

It is not a de Polignac number, because 101231132031 - 235 = 66871393663 is a prime.

It is a super-2 number, since 2×1012311320312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101231131995 and 101231132013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231132021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58820251 + ... + 58821971.

It is an arithmetic number, because the mean of its divisors is an integer number (3131264136).

Almost surely, 2101231132031 is an apocalyptic number.

101231132031 is a deficient number, since it is larger than the sum of its proper divisors (49069546497).

101231132031 is a wasteful number, since it uses less digits than its factorization.

101231132031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592 (or 2589 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 101231132031 its reverse (130231132101), we get a palindrome (231462264132).

The spelling of 101231132031 in words is "one hundred one billion, two hundred thirty-one million, one hundred thirty-two thousand, thirty-one".

Divisors: 1 3 9 47 141 241 423 577 723 1721 1731 2169 5163 5193 11327 15489 27119 33981 80887 81357 101943 139057 242661 244071 414761 417171 727983 993017 1244283 1251513 2979051 3732849 6535679 8937153 19493767 19607037 46671799 58481301 58821111 140015397 175443903 239317097 420046191 717951291 2153853873 11247903559 33743710677 101231132031