231132322 has 4 divisors (see below), whose sum is σ = 346698486. Its totient is φ = 115566160.

The previous prime is 231132299. The next prime is 231132337. The reversal of 231132322 is 223231132.

231132322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 187717401 + 43414921 = 13701^2 + 6589^2 .

It is a super-2 number, since 2×231132322² = 106844300546223368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231132322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57783079 + ... + 57783082.

Almost surely, 2^231132322 is an apocalyptic number.

231132322 is a deficient number, since it is larger than the sum of its proper divisors (115566164).

231132322 is a wasteful number, since it uses less digits than its factorization.

231132322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115566163.

The product of its digits is 432, while the sum is 19.

The square root of 231132322 is about 15203.0366045734. The cubic root of 231132322 is about 613.6963789376.

Adding to 231132322 its reverse (223231132), we get a palindrome (454363454).

The spelling of 231132322 in words is "two hundred thirty-one million, one hundred thirty-two thousand, three hundred twenty-two".