13215631292 has 36 divisors (see below), whose sum is σ = 24913993104. Its totient is φ = 6131489280.

The previous prime is 13215631291. The next prime is 13215631301. The reversal of 13215631292 is 29213651231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13215631291) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1568 + ... + 162584.

It is an arithmetic number, because the mean of its divisors is an integer number (692055364).

Almost surely, 2^13215631292 is an apocalyptic number.

It is an amenable number.

13215631292 is a deficient number, since it is larger than the sum of its proper divisors (11698361812).

13215631292 is a wasteful number, since it uses less digits than its factorization.

13215631292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161126 (or 161107 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The spelling of 13215631292 in words is "thirteen billion, two hundred fifteen million, six hundred thirty-one thousand, two hundred ninety-two".