231431123404204 has 24 divisors (see below), whose sum is σ = 414971294119200. Its totient is φ = 112869102913920.

The previous prime is 231431123404157. The next prime is 231431123404231. The reversal of 231431123404204 is 402404321134132.

It is a self number, because there is not a number n which added to its sum of digits gives 231431123404204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150030399 + ... + 151565110.

It is an arithmetic number, because the mean of its divisors is an integer number (17290470588300).

Almost surely, 2^{231431123404204} is an apocalyptic number.

It is an amenable number.

231431123404204 is a deficient number, since it is larger than the sum of its proper divisors (183540170714996).

231431123404204 is a wasteful number, since it uses less digits than its factorization.

231431123404204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301600233 (or 301600231 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 231431123404204 its reverse (402404321134132), we get a palindrome (633835444538336).

The spelling of 231431123404204 in words is "two hundred thirty-one trillion, four hundred thirty-one billion, one hundred twenty-three million, four hundred four thousand, two hundred four".