231324188 has 12 divisors (see below), whose sum is σ = 405755280. Its totient is φ = 115394112.

The previous prime is 231324113. The next prime is 231324227. The reversal of 231324188 is 881423132.

It is a super-4 number, since 4×231324188⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

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, 65048 + ... + 68511.

It is an arithmetic number, because the mean of its divisors is an integer number (33812940).

Almost surely, 2^231324188 is an apocalyptic number.

It is an amenable number.

231324188 is a deficient number, since it is larger than the sum of its proper divisors (174431092).

231324188 is a wasteful number, since it uses less digits than its factorization.

231324188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133996 (or 133994 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 231324188 is about 15209.3454165523. The cubic root of 231324188 is about 613.8661444672.

The spelling of 231324188 in words is "two hundred thirty-one million, three hundred twenty-four thousand, one hundred eighty-eight".