231331232032311 has 16 divisors (see below), whose sum is σ = 309136752288000. Its totient is φ = 153873284694528.

The previous prime is 231331232032291. The next prime is 231331232032463. The reversal of 231331232032311 is 113230232133132.

It is not a de Polignac number, because 231331232032311 - 2⁷ = 231331232032183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231331232032111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49234230 + ... + 53727756.

It is an arithmetic number, because the mean of its divisors is an integer number (19321047018000).

Almost surely, 2^{231331232032311} is an apocalyptic number.

231331232032311 is a deficient number, since it is larger than the sum of its proper divisors (77805520255689).

231331232032311 is a wasteful number, since it uses less digits than its factorization.

231331232032311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4532198.

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 231331232032311 its reverse (113230232133132), we get a palindrome (344561464165443).

The spelling of 231331232032311 in words is "two hundred thirty-one trillion, three hundred thirty-one billion, two hundred thirty-two million, thirty-two thousand, three hundred eleven".