111311042 has 4 divisors (see below), whose sum is σ = 166966566. Its totient is φ = 55655520.

The previous prime is 111311029. The next prime is 111311131. The reversal of 111311042 is 240113111.

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., 110481121 + 829921 = 10511^2 + 911^2 .

It is a super-2 number, since 2×111311042² = 24780296142251528, 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, 27827759 + ... + 27827762.

Almost surely, 2^111311042 is an apocalyptic number.

111311042 is a deficient number, since it is larger than the sum of its proper divisors (55655524).

111311042 is an equidigital number, since it uses as much as digits as its factorization.

111311042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55655523.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 111311042 is about 10550.4048263562. The cubic root of 111311042 is about 481.0380342301.

Adding to 111311042 its reverse (240113111), we get a palindrome (351424153).

The spelling of 111311042 in words is "one hundred eleven million, three hundred eleven thousand, forty-two".