1231530112404 has 36 divisors (see below), whose sum is σ = 3119533522560. Its totient is φ = 409653017040.

The previous prime is 1231530112387. The next prime is 1231530112427. The reversal of 1231530112404 is 4042110351321.

1231530112404 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 530 + 1 + 124 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35691702 + ... + 35726189.

It is an arithmetic number, because the mean of its divisors is an integer number (86653708960).

Almost surely, 2^{1231530112404} is an apocalyptic number.

It is an amenable number.

1231530112404 is an abundant number, since it is smaller than the sum of its proper divisors (1888003410156).

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

1231530112404 is a wasteful number, since it uses less digits than its factorization.

1231530112404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71418380 (or 71418375 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 1231530112404 its reverse (4042110351321), we get a palindrome (5273640463725).

The spelling of 1231530112404 in words is "one trillion, two hundred thirty-one billion, five hundred thirty million, one hundred twelve thousand, four hundred four".