11200011551 has 4 divisors (see below), whose sum is σ = 11218710000. Its totient is φ = 11181313104.

The previous prime is 11200011443. The next prime is 11200011601. The reversal of 11200011551 is 15511000211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11200011551 - 2²⁶ = 11132902687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200011751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9348326 + ... + 9349523.

It is an arithmetic number, because the mean of its divisors is an integer number (2804677500).

Almost surely, 2^11200011551 is an apocalyptic number.

11200011551 is a deficient number, since it is larger than the sum of its proper divisors (18698449).

11200011551 is an equidigital number, since it uses as much as digits as its factorization.

11200011551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18698448.

The product of its (nonzero) digits is 50, while the sum is 17.

Adding to 11200011551 its reverse (15511000211), we get a palindrome (26711011762).

The spelling of 11200011551 in words is "eleven billion, two hundred million, eleven thousand, five hundred fifty-one".