11100320291 has 2 divisors, whose sum is σ = 11100320292. Its totient is φ = 11100320290.

The previous prime is 11100320177. The next prime is 11100320293. The reversal of 11100320291 is 19202300111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11100320291 - 2²² = 11096125987 is a prime.

It is a super-2 number, since 2×11100320291² (a number of 21 digits) contains 22 as substring.

Together with 11100320293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11100320293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550160145 + 5550160146.

It is an arithmetic number, because the mean of its divisors is an integer number (5550160146).

Almost surely, 2^11100320291 is an apocalyptic number.

11100320291 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100320291 is an equidigital number, since it uses as much as digits as its factorization.

11100320291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 11100320291 in words is "eleven billion, one hundred million, three hundred twenty thousand, two hundred ninety-one".