231513450032017 has 2 divisors, whose sum is σ = 231513450032018. Its totient is φ = 231513450032016.

The previous prime is 231513450031993. The next prime is 231513450032087. The reversal of 231513450032017 is 710230054315132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169393973340736 + 62119476691281 = 13015144^2 + 7881591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231513450032017 is a prime.

It is not a weakly prime, because it can be changed into another prime (231513450032087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115756725016008 + 115756725016009.

It is an arithmetic number, because the mean of its divisors is an integer number (115756725016009).

Almost surely, 2^{231513450032017} is an apocalyptic number.

It is an amenable number.

231513450032017 is a deficient number, since it is larger than the sum of its proper divisors (1).

231513450032017 is an equidigital number, since it uses as much as digits as its factorization.

231513450032017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 231513450032017 in words is "two hundred thirty-one trillion, five hundred thirteen billion, four hundred fifty million, thirty-two thousand, seventeen".