11310013091 has 4 divisors (see below), whose sum is σ = 12180014112. Its totient is φ = 10440012072.

The previous prime is 11310013049. The next prime is 11310013097. The reversal of 11310013091 is 19031001311.

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

It is a cyclic number.

It is not a de Polignac number, because 11310013091 - 2²² = 11305818787 is a prime.

It is a super-2 number, since 2×11310013091² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11310013097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435000491 + ... + 435000516.

It is an arithmetic number, because the mean of its divisors is an integer number (3045003528).

Almost surely, 2^11310013091 is an apocalyptic number.

11310013091 is a deficient number, since it is larger than the sum of its proper divisors (870001021).

11310013091 is an equidigital number, since it uses as much as digits as its factorization.

11310013091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870001020.

The product of its (nonzero) digits is 81, while the sum is 20.

The spelling of 11310013091 in words is "eleven billion, three hundred ten million, thirteen thousand, ninety-one".