232131988 has 12 divisors (see below), whose sum is σ = 443161152. Its totient is φ = 105514520.

The previous prime is 232131983. The next prime is 232132001. The reversal of 232131988 is 889131232.

232131988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232131983) 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, 2637820 + ... + 2637907.

It is an arithmetic number, because the mean of its divisors is an integer number (36930096).

Almost surely, 2^232131988 is an apocalyptic number.

It is an amenable number.

232131988 is a deficient number, since it is larger than the sum of its proper divisors (211029164).

232131988 is a wasteful number, since it uses less digits than its factorization.

232131988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5275742 (or 5275740 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 232131988 is about 15235.8783140323. The cubic root of 232131988 is about 614.5798686077.

The spelling of 232131988 in words is "two hundred thirty-two million, one hundred thirty-one thousand, nine hundred eighty-eight".