11012304491 has 2 divisors, whose sum is σ = 11012304492. Its totient is φ = 11012304490.

The previous prime is 11012304419. The next prime is 11012304503. The reversal of 11012304491 is 19440321011.

It is a happy number.

Together with previous prime (11012304419) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11012304491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11012304491.

It is not a weakly prime, because it can be changed into another prime (11012304691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506152245 + 5506152246.

It is an arithmetic number, because the mean of its divisors is an integer number (5506152246).

Almost surely, 2^11012304491 is an apocalyptic number.

11012304491 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012304491 is an equidigital number, since it uses as much as digits as its factorization.

11012304491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 11012304491 in words is "eleven billion, twelve million, three hundred four thousand, four hundred ninety-one".