231515010344071 has 2 divisors, whose sum is σ = 231515010344072. Its totient is φ = 231515010344070.

The previous prime is 231515010344053. The next prime is 231515010344077. The reversal of 231515010344071 is 170443010515132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231515010344071 - 2¹⁷ = 231515010212999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231515010344071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231515010344077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115757505172035 + 115757505172036.

It is an arithmetic number, because the mean of its divisors is an integer number (115757505172036).

Almost surely, 2^{231515010344071} is an apocalyptic number.

231515010344071 is a deficient number, since it is larger than the sum of its proper divisors (1).

231515010344071 is an equidigital number, since it uses as much as digits as its factorization.

231515010344071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 231515010344071 in words is "two hundred thirty-one trillion, five hundred fifteen billion, ten million, three hundred forty-four thousand, seventy-one".