231322442272 has 24 divisors (see below), whose sum is σ = 455429195676. Its totient is φ = 115657884672.

The previous prime is 231322442251. The next prime is 231322442297. The reversal of 231322442272 is 272244223132.

231322442272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 221656406416 + 9666035856 = 470804^2 + 98316^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322908 + ... + 1487524.

Almost surely, 2^231322442272 is an apocalyptic number.

It is an amenable number.

231322442272 is a deficient number, since it is larger than the sum of its proper divisors (224106753404).

231322442272 is a wasteful number, since it uses less digits than its factorization.

231322442272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208540 (or 208532 counting only the distinct ones).

The product of its digits is 64512, while the sum is 34.

The spelling of 231322442272 in words is "two hundred thirty-one billion, three hundred twenty-two million, four hundred forty-two thousand, two hundred seventy-two".