231505551404 has 24 divisors (see below), whose sum is σ = 428980916448. Its totient is φ = 108940043520.

The previous prime is 231505551371. The next prime is 231505551467. The reversal of 231505551404 is 404155505132.

231505551404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3641369 + ... + 3704399.

It is an arithmetic number, because the mean of its divisors is an integer number (17874204852).

Almost surely, 2^231505551404 is an apocalyptic number.

It is an amenable number.

231505551404 is a deficient number, since it is larger than the sum of its proper divisors (197475365044).

231505551404 is a wasteful number, since it uses less digits than its factorization.

231505551404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117065 (or 117063 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 231505551404 in words is "two hundred thirty-one billion, five hundred five million, five hundred fifty-one thousand, four hundred four".