11013512551 has 2 divisors, whose sum is σ = 11013512552. Its totient is φ = 11013512550.

The previous prime is 11013512513. The next prime is 11013512563. The reversal of 11013512551 is 15521531011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11013512551 - 2⁷ = 11013512423 is a prime.

It is a super-2 number, since 2×11013512551² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11013512591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506756275 + 5506756276.

It is an arithmetic number, because the mean of its divisors is an integer number (5506756276).

Almost surely, 2^11013512551 is an apocalyptic number.

11013512551 is a deficient number, since it is larger than the sum of its proper divisors (1).

11013512551 is an equidigital number, since it uses as much as digits as its factorization.

11013512551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 11013512551 in words is "eleven billion, thirteen million, five hundred twelve thousand, five hundred fifty-one".