11142220113 has 10 divisors (see below), whose sum is σ = 16644551154. Its totient is φ = 7428146688.

The previous prime is 11142220097. The next prime is 11142220183. The reversal of 11142220113 is 31102224111.

11142220113 is a `hidden beast` number, since 111 + 422 + 20 + 113 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9886722624 + 1255497489 = 99432^2 + 35433^2 .

It is not a de Polignac number, because 11142220113 - 2⁴ = 11142220097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11142220183) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 68779056 + ... + 68779217.

Almost surely, 2^11142220113 is an apocalyptic number.

It is an amenable number.

11142220113 is a deficient number, since it is larger than the sum of its proper divisors (5502331041).

11142220113 is an equidigital number, since it uses as much as digits as its factorization.

11142220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137558285 (or 137558276 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11142220113 its reverse (31102224111), we get a palindrome (42244444224).

The spelling of 11142220113 in words is "eleven billion, one hundred forty-two million, two hundred twenty thousand, one hundred thirteen".