11247802091 has 2 divisors, whose sum is σ = 11247802092. Its totient is φ = 11247802090.

The previous prime is 11247802051. The next prime is 11247802121. The reversal of 11247802091 is 19020874211.

It is a strong prime.

It is an emirp because it is prime and its reverse (19020874211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11247802091 - 2²² = 11243607787 is a prime.

It is not a weakly prime, because it can be changed into another prime (11247802051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5623901045 + 5623901046.

It is an arithmetic number, because the mean of its divisors is an integer number (5623901046).

Almost surely, 2^11247802091 is an apocalyptic number.

11247802091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11247802091 is an equidigital number, since it uses as much as digits as its factorization.

11247802091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 11247802091 in words is "eleven billion, two hundred forty-seven million, eight hundred two thousand, ninety-one".