1113111442 has 4 divisors (see below), whose sum is σ = 1669667166. Its totient is φ = 556555720.

The previous prime is 1113111407. The next prime is 1113111463. The reversal of 1113111442 is 2441113111.

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

It can be written as a sum of positive squares in only one way, i.e., 1106294121 + 6817321 = 33261^2 + 2611^2 .

It is a super-2 number, since 2×1113111442² = 2478034164622638728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278277859 + ... + 278277862.

Almost surely, 2^1113111442 is an apocalyptic number.

1113111442 is a deficient number, since it is larger than the sum of its proper divisors (556555724).

1113111442 is an equidigital number, since it uses as much as digits as its factorization.

1113111442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556555723.

The product of its digits is 96, while the sum is 19.

The square root of 1113111442 is about 33363.3248043417. The cubic root of 1113111442 is about 1036.3653453487.

Adding to 1113111442 its reverse (2441113111), we get a palindrome (3554224553).

The spelling of 1113111442 in words is "one billion, one hundred thirteen million, one hundred eleven thousand, four hundred forty-two".