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10112311231 = 115897155893
BaseRepresentation
bin10010110101011110…
…11001111110111111
3222002202002122011121
421122233121332333
5131202222424411
64351233531411
7505410140641
oct113257317677
928082078147
1010112311231
11431a155110
121b62713b67
13c52051819
146bd03a891
153e2b95571
hex25abd9fbf

10112311231 has 8 divisors (see below), whose sum is σ = 11033553744. Its totient is φ = 9191392320.

The previous prime is 10112311211. The next prime is 10112311241. The reversal of 10112311231 is 13211321101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10112311231 - 229 = 9575440319 is a prime.

It is a super-2 number, since 2×101123112312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112311211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13080 + ... + 142813.

It is an arithmetic number, because the mean of its divisors is an integer number (1379194218).

Almost surely, 210112311231 is an apocalyptic number.

10112311231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10112311231 is a deficient number, since it is larger than the sum of its proper divisors (921242513).

10112311231 is a wasteful number, since it uses less digits than its factorization.

10112311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161801.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 10112311231 its reverse (13211321101), we get a palindrome (23323632332).

The spelling of 10112311231 in words is "ten billion, one hundred twelve million, three hundred eleven thousand, two hundred thirty-one".

Divisors: 1 11 5897 64867 155893 1714823 919301021 10112311231