231515110255343 has 2 divisors, whose sum is σ = 231515110255344. Its totient is φ = 231515110255342.

The previous prime is 231515110255339. The next prime is 231515110255349. The reversal of 231515110255343 is 343552011515132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231515110255343 - 2² = 231515110255339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231515110255343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231515110255349) 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, 115757555127671 + 115757555127672.

It is an arithmetic number, because the mean of its divisors is an integer number (115757555127672).

Almost surely, 2^{231515110255343} is an apocalyptic number.

231515110255343 is a deficient number, since it is larger than the sum of its proper divisors (1).

231515110255343 is an equidigital number, since it uses as much as digits as its factorization.

231515110255343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 231515110255343 in words is "two hundred thirty-one trillion, five hundred fifteen billion, one hundred ten million, two hundred fifty-five thousand, three hundred forty-three".