11100561051 has 4 divisors (see below), whose sum is σ = 14800748072. Its totient is φ = 7400374032.

The previous prime is 11100561037. The next prime is 11100561061. The reversal of 11100561051 is 15016500111.

It is a happy number.

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

It is not a de Polignac number, because 11100561051 - 2⁵ = 11100561019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11100561061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1850093506 + ... + 1850093511.

It is an arithmetic number, because the mean of its divisors is an integer number (3700187018).

Almost surely, 2^11100561051 is an apocalyptic number.

11100561051 is a deficient number, since it is larger than the sum of its proper divisors (3700187021).

11100561051 is an equidigital number, since it uses as much as digits as its factorization.

11100561051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700187020.

The product of its (nonzero) digits is 150, while the sum is 21.

The spelling of 11100561051 in words is "eleven billion, one hundred million, five hundred sixty-one thousand, fifty-one".