231532501551023 has 2 divisors, whose sum is σ = 231532501551024. Its totient is φ = 231532501551022.

The previous prime is 231532501550969. The next prime is 231532501551077. The reversal of 231532501551023 is 320155105235132.

It is a balanced prime because it is at equal distance from previous prime (231532501550969) and next prime (231532501551077).

It is a cyclic number.

It is not a de Polignac number, because 231532501551023 - 2²⁸ = 231532233115567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231532501551823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115766250775511 + 115766250775512.

It is an arithmetic number, because the mean of its divisors is an integer number (115766250775512).

Almost surely, 2^{231532501551023} is an apocalyptic number.

231532501551023 is a deficient number, since it is larger than the sum of its proper divisors (1).

231532501551023 is an equidigital number, since it uses as much as digits as its factorization.

231532501551023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135000, while the sum is 38.

Adding to 231532501551023 its reverse (320155105235132), we get a palindrome (551687606786155).

The spelling of 231532501551023 in words is "two hundred thirty-one trillion, five hundred thirty-two billion, five hundred one million, five hundred fifty-one thousand, twenty-three".