231712004 has 12 divisors (see below), whose sum is σ = 406028700. Its totient is φ = 115703808.

The previous prime is 231711917. The next prime is 231712043. The reversal of 231712004 is 400217132.

231712004 is digitally balanced in base 2, because in such base 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 53436100 + 178275904 = 7310^2 + 13352^2 .

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, 34589 + ... + 40740.

It is an arithmetic number, because the mean of its divisors is an integer number (33835725).

Almost surely, 2^231712004 is an apocalyptic number.

It is an amenable number.

231712004 is a deficient number, since it is larger than the sum of its proper divisors (174316696).

231712004 is a wasteful number, since it uses less digits than its factorization.

231712004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76102 (or 76100 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 231712004 is about 15222.0893441078. The cubic root of 231712004 is about 614.2090026847.

Adding to 231712004 its reverse (400217132), we get a palindrome (631929136).

The spelling of 231712004 in words is "two hundred thirty-one million, seven hundred twelve thousand, four".