11051015051 has 4 divisors (see below), whose sum is σ = 11051593992. Its totient is φ = 11050436112.

The previous prime is 11051015021. The next prime is 11051015077. The reversal of 11051015051 is 15051015011.

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 11051015051 - 2¹⁰ = 11051014027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11051015021) 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, 259826 + ... + 299351.

It is an arithmetic number, because the mean of its divisors is an integer number (2762898498).

Almost surely, 2^11051015051 is an apocalyptic number.

11051015051 is a deficient number, since it is larger than the sum of its proper divisors (578941).

11051015051 is an equidigital number, since it uses as much as digits as its factorization.

11051015051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578940.

The product of its (nonzero) digits is 125, while the sum is 20.

The spelling of 11051015051 in words is "eleven billion, fifty-one million, fifteen thousand, fifty-one".