231110305321 has 16 divisors (see below), whose sum is σ = 268629166080. Its totient is φ = 194717880720.

The previous prime is 231110305249. The next prime is 231110305369. The reversal of 231110305321 is 123503011132.

It is a cyclic number.

It is not a de Polignac number, because 231110305321 - 2¹⁵ = 231110272553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231110305292 and 231110305301.

It is not an unprimeable number, because it can be changed into a prime (231110305121) 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, 5549386 + ... + 5590876.

It is an arithmetic number, because the mean of its divisors is an integer number (16789322880).

Almost surely, 2^231110305321 is an apocalyptic number.

It is an amenable number.

231110305321 is a deficient number, since it is larger than the sum of its proper divisors (37518860759).

231110305321 is a wasteful number, since it uses less digits than its factorization.

231110305321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55044.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 231110305321 its reverse (123503011132), we get a palindrome (354613316453).

The spelling of 231110305321 in words is "two hundred thirty-one billion, one hundred ten million, three hundred five thousand, three hundred twenty-one".