231032431404 has 18 divisors (see below), whose sum is σ = 583998646140. Its totient is φ = 77010810456.

The previous prime is 231032431373. The next prime is 231032431417. The reversal of 231032431404 is 404134230132.

231032431404 is a `hidden beast` number, since 2 + 3 + 10 + 3 + 243 + 1 + 404 = 666.

231032431404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×231032431404² (a number of 24 digits) contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 3208783734 + ... + 3208783805.

It is an arithmetic number, because the mean of its divisors is an integer number (32444369230).

Almost surely, 2^231032431404 is an apocalyptic number.

It is an amenable number.

231032431404 is an abundant number, since it is smaller than the sum of its proper divisors (352966214736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231032431404 is a wasteful number, since it uses less digits than its factorization.

231032431404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6417567549 (or 6417567544 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 231032431404 its reverse (404134230132), we get a palindrome (635166661536).

The spelling of 231032431404 in words is "two hundred thirty-one billion, thirty-two million, four hundred thirty-one thousand, four hundred four".