11020440051 has 12 divisors (see below), whose sum is σ = 15940874560. Its totient is φ = 7336593360.

The previous prime is 11020440019. The next prime is 11020440089. The reversal of 11020440051 is 15004402011.

11020440051 is a `hidden beast` number, since 1 + 10 + 204 + 400 + 51 = 666.

It is not a de Polignac number, because 11020440051 - 2⁵ = 11020440019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11020440091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 857155 + ... + 869916.

Almost surely, 2^11020440051 is an apocalyptic number.

11020440051 is a deficient number, since it is larger than the sum of its proper divisors (4920434509).

11020440051 is a wasteful number, since it uses less digits than its factorization.

11020440051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727786 (or 1727783 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 11020440051 its reverse (15004402011), we get a palindrome (26024842062).

The spelling of 11020440051 in words is "eleven billion, twenty million, four hundred forty thousand, fifty-one".