91120432012 has 12 divisors (see below), whose sum is σ = 162853538400. Its totient is φ = 44590849616.

The previous prime is 91120432003. The next prime is 91120432019. The reversal of 91120432012 is 21023402119.

It is not an unprimeable number, because it can be changed into a prime (91120432019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242341387 + ... + 242341762.

It is an arithmetic number, because the mean of its divisors is an integer number (13571128200).

Almost surely, 2^91120432012 is an apocalyptic number.

It is an amenable number.

91120432012 is a deficient number, since it is larger than the sum of its proper divisors (71733106388).

91120432012 is a wasteful number, since it uses less digits than its factorization.

91120432012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484683200 (or 484683198 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 91120432012 in words is "ninety-one billion, one hundred twenty million, four hundred thirty-two thousand, twelve".