231883923601931 has 2 divisors, whose sum is σ = 231883923601932. Its totient is φ = 231883923601930.

The previous prime is 231883923601903. The next prime is 231883923601973. The reversal of 231883923601931 is 139106329388132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231883923601931 - 2¹⁰ = 231883923600907 is a prime.

It is a super-2 number, since 2×231883923601931² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (231883923606931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115941961800965 + 115941961800966.

It is an arithmetic number, because the mean of its divisors is an integer number (115941961800966).

Almost surely, 2^{231883923601931} is an apocalyptic number.

231883923601931 is a deficient number, since it is larger than the sum of its proper divisors (1).

231883923601931 is an equidigital number, since it uses as much as digits as its factorization.

231883923601931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10077696, while the sum is 59.

The spelling of 231883923601931 in words is "two hundred thirty-one trillion, eight hundred eighty-three billion, nine hundred twenty-three million, six hundred one thousand, nine hundred thirty-one".