231012004 has 12 divisors (see below), whose sum is σ = 409809484. Its totient is φ = 113923584.

The previous prime is 231011987. The next prime is 231012007. The reversal of 231012004 is 400210132.

231012004 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 175509504 + 55502500 = 13248^2 + 7450^2 .

231012004 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (231012007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395277 + ... + 395860.

Almost surely, 2^231012004 is an apocalyptic number.

It is an amenable number.

231012004 is a deficient number, since it is larger than the sum of its proper divisors (178797480).

231012004 is a wasteful number, since it uses less digits than its factorization.

231012004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791214 (or 791212 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 231012004 is about 15199.0790510478. The cubic root of 231012004 is about 613.5898720725.

Adding to 231012004 its reverse (400210132), we get a palindrome (631222136).

The spelling of 231012004 in words is "two hundred thirty-one million, twelve thousand, four".