231513454510439 has 2 divisors, whose sum is σ = 231513454510440. Its totient is φ = 231513454510438.

The previous prime is 231513454510397. The next prime is 231513454510463. The reversal of 231513454510439 is 934015454315132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231513454510439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231513454510469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115756727255219 + 115756727255220.

It is an arithmetic number, because the mean of its divisors is an integer number (115756727255220).

Almost surely, 2^{231513454510439} is an apocalyptic number.

231513454510439 is a deficient number, since it is larger than the sum of its proper divisors (1).

231513454510439 is an equidigital number, since it uses as much as digits as its factorization.

231513454510439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 231513454510439 in words is "two hundred thirty-one trillion, five hundred thirteen billion, four hundred fifty-four million, five hundred ten thousand, four hundred thirty-nine".