111611042 has 16 divisors (see below), whose sum is σ = 176912640. Its totient is φ = 52701792.

The previous prime is 111611033. The next prime is 111611051. The reversal of 111611042 is 240116111.

It is an interprime number because it is at equal distance from previous prime (111611033) and next prime (111611051).

It is a self number, because there is not a number n which added to its sum of digits gives 111611042.

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, 11723 + ... + 18990.

It is an arithmetic number, because the mean of its divisors is an integer number (11057040).

Almost surely, 2^111611042 is an apocalyptic number.

111611042 is a deficient number, since it is larger than the sum of its proper divisors (65301598).

111611042 is a wasteful number, since it uses less digits than its factorization.

111611042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30817.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 111611042 is about 10564.6127236165. The cubic root of 111611042 is about 481.4698031857.

Adding to 111611042 its reverse (240116111), we get a palindrome (351727153).

The spelling of 111611042 in words is "one hundred eleven million, six hundred eleven thousand, forty-two".