91002002000011 has 4 divisors (see below), whose sum is σ = 91101894429024. Its totient is φ = 90902109571000.

The previous prime is 91002001999973. The next prime is 91002002000023. The reversal of 91002002000011 is 11000020020019.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91002002000011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91002002001011) 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, 49946213140 + ... + 49946214961.

It is an arithmetic number, because the mean of its divisors is an integer number (22775473607256).

Almost surely, 2^{91002002000011} is an apocalyptic number.

91002002000011 is a deficient number, since it is larger than the sum of its proper divisors (99892429013).

91002002000011 is an equidigital number, since it uses as much as digits as its factorization.

91002002000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99892429012.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 91002002000011 in words is "ninety-one trillion, two billion, two million, eleven", and thus it is an aban number and an uban number.