91133203232 has 24 divisors (see below), whose sum is σ = 187219299456. Its totient is φ = 43585444672.

The previous prime is 91133203211. The next prime is 91133203247. The reversal of 91133203232 is 23230233119.

It is a junction number, because it is equal to n+sod(n) for n = 91133203195 and 91133203204.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 61910408 + ... + 61911879.

It is an arithmetic number, because the mean of its divisors is an integer number (7800804144).

Almost surely, 2^91133203232 is an apocalyptic number.

91133203232 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

91133203232 is an abundant number, since it is smaller than the sum of its proper divisors (96086096224).

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

91133203232 is a wasteful number, since it uses less digits than its factorization.

91133203232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123822320 (or 123822312 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 29.

The spelling of 91133203232 in words is "ninety-one billion, one hundred thirty-three million, two hundred three thousand, two hundred thirty-two".