231045520104 has 72 divisors (see below), whose sum is σ = 727911279810. Its totient is φ = 66013004736.

The previous prime is 231045520093. The next prime is 231045520109. The reversal of 231045520104 is 401025540132.

231045520104 is a `hidden beast` number, since 2 + 3 + 1 + 0 + 4 + 552 + 0 + 104 = 666.

It can be written as a sum of positive squares in only one way, i.e., 230256022500 + 789497604 = 479850^2 + 28098^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (231045520109) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 32741019 + ... + 32748074.

Almost surely, 2^231045520104 is an apocalyptic number.

231045520104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231045520104 is an abundant number, since it is smaller than the sum of its proper divisors (496865759706).

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

231045520104 is a wasteful number, since it uses less digits than its factorization.

231045520104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65489119 (or 65489105 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 231045520104 in words is "two hundred thirty-one billion, forty-five million, five hundred twenty thousand, one hundred four".