231204312404 has 12 divisors (see below), whose sum is σ = 435731204244. Its totient is φ = 106709682624.

The previous prime is 231204312397. The next prime is 231204312431. The reversal of 231204312404 is 404213402132.

It can be written as a sum of positive squares in 2 ways, for example, as 10541128900 + 220663183504 = 102670^2 + 469748^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 2223118337 + ... + 2223118440.

It is an arithmetic number, because the mean of its divisors is an integer number (36310933687).

Almost surely, 2^231204312404 is an apocalyptic number.

It is an amenable number.

231204312404 is a deficient number, since it is larger than the sum of its proper divisors (204526891840).

231204312404 is a wasteful number, since it uses less digits than its factorization.

231204312404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4446236794 (or 4446236792 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 231204312404 its reverse (404213402132), we get a palindrome (635417714536).

The spelling of 231204312404 in words is "two hundred thirty-one billion, two hundred four million, three hundred twelve thousand, four hundred four".