91333121011 has 8 divisors (see below), whose sum is σ = 104880139200. Its totient is φ = 78660104040.

The previous prime is 91333120987. The next prime is 91333121021. The reversal of 91333121011 is 11012133319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91333121011 - 2¹⁷ = 91332989939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91333121021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218500081 + ... + 218500498.

It is an arithmetic number, because the mean of its divisors is an integer number (13110017400).

Almost surely, 2^91333121011 is an apocalyptic number.

91333121011 is a deficient number, since it is larger than the sum of its proper divisors (13547018189).

91333121011 is a wasteful number, since it uses less digits than its factorization.

91333121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437000609.

The product of its (nonzero) digits is 486, while the sum is 25.

The spelling of 91333121011 in words is "ninety-one billion, three hundred thirty-three million, one hundred twenty-one thousand, eleven".