231320308 has 6 divisors (see below), whose sum is σ = 404810546. Its totient is φ = 115660152.

The previous prime is 231320273. The next prime is 231320311. The reversal of 231320308 is 803023132.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 199713424 + 31606884 = 14132^2 + 5622^2 .

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, 28915035 + ... + 28915042.

Almost surely, 2^231320308 is an apocalyptic number.

It is an amenable number.

231320308 is a deficient number, since it is larger than the sum of its proper divisors (173490238).

231320308 is a wasteful number, since it uses less digits than its factorization.

231320308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57830081 (or 57830079 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 231320308 is about 15209.2178628620. The cubic root of 231320308 is about 613.8627123230.

The spelling of 231320308 in words is "two hundred thirty-one million, three hundred twenty thousand, three hundred eight".