231233132 has 24 divisors (see below), whose sum is σ = 437208576. Its totient is φ = 106374528.

The previous prime is 231233129. The next prime is 231233141. The reversal of 231233132 is 231332132.

231233132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231233132² = 106937522669058848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9173 + ... + 23379.

It is an arithmetic number, because the mean of its divisors is an integer number (18217024).

Almost surely, 2^231233132 is an apocalyptic number.

It is an amenable number.

231233132 is a deficient number, since it is larger than the sum of its proper divisors (205975444).

231233132 is a wasteful number, since it uses less digits than its factorization.

231233132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14537 (or 14535 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 231233132 is about 15206.3516992078. The cubic root of 231233132 is about 613.7855886437.

Adding to 231233132 its reverse (231332132), we get a palindrome (462565264).

The spelling of 231233132 in words is "two hundred thirty-one million, two hundred thirty-three thousand, one hundred thirty-two".