31121468432 has 20 divisors (see below), whose sum is σ = 60344020176. Its totient is φ = 15548818080.

The previous prime is 31121468419. The next prime is 31121468449. The reversal of 31121468432 is 23486412113.

It is a junction number, because it is equal to n+sod(n) for n = 31121468392 and 31121468401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723194 + ... + 765017.

Almost surely, 2^31121468432 is an apocalyptic number.

It is an amenable number.

31121468432 is a deficient number, since it is larger than the sum of its proper divisors (29222551744).

31121468432 is a wasteful number, since it uses less digits than its factorization.

31121468432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489526 (or 1489520 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The spelling of 31121468432 in words is "thirty-one billion, one hundred twenty-one million, four hundred sixty-eight thousand, four hundred thirty-two".