11111055442 has 16 divisors (see below), whose sum is σ = 16795368792. Its totient is φ = 5512723840.

The previous prime is 11111055401. The next prime is 11111055457. The reversal of 11111055442 is 24455011111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9093338881 + 2017716561 = 95359^2 + 44919^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149448 + ... + 211084.

Almost surely, 2^11111055442 is an apocalyptic number.

11111055442 is a deficient number, since it is larger than the sum of its proper divisors (5684313350).

11111055442 is a wasteful number, since it uses less digits than its factorization.

11111055442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62333.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 11111055442 its reverse (24455011111), we get a palindrome (35566066553).

The spelling of 11111055442 in words is "eleven billion, one hundred eleven million, fifty-five thousand, four hundred forty-two".