231102305231 has 16 divisors (see below), whose sum is σ = 270592939008. Its totient is φ = 193231896000.

The previous prime is 231102305221. The next prime is 231102305251. The reversal of 231102305231 is 132503201132.

It is a cyclic number.

It is not a de Polignac number, because 231102305231 - 2¹⁸ = 231102043087 is a prime.

It is a super-2 number, since 2×231102305231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231102305197 and 231102305206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231102305221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2439806 + ... + 2532756.

It is an arithmetic number, because the mean of its divisors is an integer number (16912058688).

Almost surely, 2^231102305231 is an apocalyptic number.

231102305231 is a deficient number, since it is larger than the sum of its proper divisors (39490633777).

231102305231 is an equidigital number, since it uses as much as digits as its factorization.

231102305231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101662.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 231102305231 its reverse (132503201132), we get a palindrome (363605506363).

The spelling of 231102305231 in words is "two hundred thirty-one billion, one hundred two million, three hundred five thousand, two hundred thirty-one".