231513450031967 has 2 divisors, whose sum is σ = 231513450031968. Its totient is φ = 231513450031966.

The previous prime is 231513450031957. The next prime is 231513450031993. The reversal of 231513450031967 is 769130054315132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231513450031967 - 2⁴ = 231513450031951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231513450031937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115756725015983 + 115756725015984.

It is an arithmetic number, because the mean of its divisors is an integer number (115756725015984).

Almost surely, 2^{231513450031967} is an apocalyptic number.

231513450031967 is a deficient number, since it is larger than the sum of its proper divisors (1).

231513450031967 is an equidigital number, since it uses as much as digits as its factorization.

231513450031967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2041200, while the sum is 50.

The spelling of 231513450031967 in words is "two hundred thirty-one trillion, five hundred thirteen billion, four hundred fifty million, thirty-one thousand, nine hundred sixty-seven".