231520751272 has 64 divisors (see below), whose sum is σ = 453295362240. Its totient is φ = 110762073600.

The previous prime is 231520751239. The next prime is 231520751299. The reversal of 231520751272 is 272157025132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6926103 + ... + 6959449.

It is an arithmetic number, because the mean of its divisors is an integer number (7082740035).

Almost surely, 2^231520751272 is an apocalyptic number.

It is an amenable number.

231520751272 is a deficient number, since it is larger than the sum of its proper divisors (221774610968).

231520751272 is a wasteful number, since it uses less digits than its factorization.

231520751272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33802 (or 33798 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The spelling of 231520751272 in words is "two hundred thirty-one billion, five hundred twenty million, seven hundred fifty-one thousand, two hundred seventy-two".