231223004 has 6 divisors (see below), whose sum is σ = 404640264. Its totient is φ = 115611500.

The previous prime is 231222923. The next prime is 231223019. The reversal of 231223004 is 400322132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28902872 + ... + 28902879.

It is an arithmetic number, because the mean of its divisors is an integer number (67440044).

Almost surely, 2^231223004 is an apocalyptic number.

It is an amenable number.

231223004 is a deficient number, since it is larger than the sum of its proper divisors (173417260).

231223004 is a wasteful number, since it uses less digits than its factorization.

231223004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57805755 (or 57805753 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 231223004 is about 15206.0186768266. The cubic root of 231223004 is about 613.7766272532.

Adding to 231223004 its reverse (400322132), we get a palindrome (631545136).

The spelling of 231223004 in words is "two hundred thirty-one million, two hundred twenty-three thousand, four".