231323132 has 12 divisors (see below), whose sum is σ = 407078280. Its totient is φ = 115015056.

The previous prime is 231323123. The next prime is 231323137.

231323132 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231323137) 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, 160823 + ... + 162254.

It is an arithmetic number, because the mean of its divisors is an integer number (33923190).

Almost surely, 2^231323132 is an apocalyptic number.

It is an amenable number.

231323132 is a deficient number, since it is larger than the sum of its proper divisors (175755148).

231323132 is a wasteful number, since it uses less digits than its factorization.

231323132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323260 (or 323258 counting only the distinct ones).

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

The square root of 231323132 is about 15209.3107010147. The cubic root of 231323132 is about 613.8652103617.

The spelling of 231323132 in words is "two hundred thirty-one million, three hundred twenty-three thousand, one hundred thirty-two".