231235739004 has 12 divisors (see below), whose sum is σ = 539550057704. Its totient is φ = 77078579664.

The previous prime is 231235738991. The next prime is 231235739023. The reversal of 231235739004 is 400937532132.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9634822447 + ... + 9634822470.

Almost surely, 2^231235739004 is an apocalyptic number.

It is an amenable number.

231235739004 is an abundant number, since it is smaller than the sum of its proper divisors (308314318700).

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

231235739004 is a wasteful number, since it uses less digits than its factorization.

231235739004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19269644924 (or 19269644922 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 39.

The spelling of 231235739004 in words is "two hundred thirty-one billion, two hundred thirty-five million, seven hundred thirty-nine thousand, four".