231515010342055 has 32 divisors (see below), whose sum is σ = 305366110963200. Its totient is φ = 167104962614400.

The previous prime is 231515010342029. The next prime is 231515010342067. The reversal of 231515010342055 is 550243010515132.

It is not a de Polignac number, because 231515010342055 - 2³³ = 231506420407463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18089091 + ... + 28111300.

It is an arithmetic number, because the mean of its divisors is an integer number (9542690967600).

Almost surely, 2^{231515010342055} is an apocalyptic number.

231515010342055 is a deficient number, since it is larger than the sum of its proper divisors (73851100621145).

231515010342055 is a wasteful number, since it uses less digits than its factorization.

231515010342055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46201095.

The product of its (nonzero) digits is 90000, while the sum is 37.

Adding to 231515010342055 its reverse (550243010515132), we get a palindrome (781758020857187).

The spelling of 231515010342055 in words is "two hundred thirty-one trillion, five hundred fifteen billion, ten million, three hundred forty-two thousand, fifty-five".