99001011011 has 16 divisors (see below), whose sum is σ = 119812216320. Its totient is φ = 79857912960.

The previous prime is 99001010987. The next prime is 99001011023. The reversal of 99001011011 is 11011010099.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-99001011011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99001011041) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1243130 + ... + 1320368.

It is an arithmetic number, because the mean of its divisors is an integer number (7488263520).

Almost surely, 2^99001011011 is an apocalyptic number.

99001011011 is a deficient number, since it is larger than the sum of its proper divisors (20811205309).

99001011011 is a wasteful number, since it uses less digits than its factorization.

99001011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88034.

The product of its (nonzero) digits is 81, while the sum is 23.

The spelling of 99001011011 in words is "ninety-nine billion, one million, eleven thousand, eleven".