231204004 has 12 divisors (see below), whose sum is σ = 422198784. Its totient is φ = 110575784.

The previous prime is 231203993. The next prime is 231204011. The reversal of 231204004 is 400402132.

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, 1256452 + ... + 1256635.

It is an arithmetic number, because the mean of its divisors is an integer number (35183232).

Almost surely, 2^231204004 is an apocalyptic number.

It is an amenable number.

231204004 is a deficient number, since it is larger than the sum of its proper divisors (190994780).

231204004 is a wasteful number, since it uses less digits than its factorization.

231204004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513114 (or 2513112 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 231204004 is about 15205.3939113724. The cubic root of 231204004 is about 613.7598150919.

Adding to 231204004 its reverse (400402132), we get a palindrome (631606136).

The spelling of 231204004 in words is "two hundred thirty-one million, two hundred four thousand, four".