11312113091 has 2 divisors, whose sum is σ = 11312113092. Its totient is φ = 11312113090.

The previous prime is 11312113061. The next prime is 11312113117. The reversal of 11312113091 is 19031121311.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11312113091 is a prime.

It is not a weakly prime, because it can be changed into another prime (11312113031) 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 as a sum of consecutive naturals, namely, 5656056545 + 5656056546.

It is an arithmetic number, because the mean of its divisors is an integer number (5656056546).

Almost surely, 2^11312113091 is an apocalyptic number.

11312113091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11312113091 is an equidigital number, since it uses as much as digits as its factorization.

11312113091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 23.

The spelling of 11312113091 in words is "eleven billion, three hundred twelve million, one hundred thirteen thousand, ninety-one".