31654215112 has 48 divisors (see below), whose sum is σ = 64315350000. Its totient is φ = 14598956736.

The previous prime is 31654215097. The next prime is 31654215163. The reversal of 31654215112 is 21151245613.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2018839 + ... + 2034457.

It is an arithmetic number, because the mean of its divisors is an integer number (1339903125).

Almost surely, 2^31654215112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31654215112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32157675000).

31654215112 is an abundant number, since it is smaller than the sum of its proper divisors (32661134888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31654215112 is a wasteful number, since it uses less digits than its factorization.

31654215112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17150 (or 17133 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The spelling of 31654215112 in words is "thirty-one billion, six hundred fifty-four million, two hundred fifteen thousand, one hundred twelve".