91213330112 has 56 divisors (see below), whose sum is σ = 182438802000. Its totient is φ = 45244993536.

The previous prime is 91213330099. The next prime is 91213330127. The reversal of 91213330112 is 21103331219.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15591764 + ... + 15597612.

It is an arithmetic number, because the mean of its divisors is an integer number (3257835750).

Almost surely, 2^91213330112 is an apocalyptic number.

It is an amenable number.

91213330112 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

91213330112 is a wasteful number, since it uses less digits than its factorization.

91213330112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7753 (or 7743 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 91213330112 in words is "ninety-one billion, two hundred thirteen million, three hundred thirty thousand, one hundred twelve".