111042131 has 8 divisors (see below), whose sum is σ = 116257680. Its totient is φ = 105919072.

The previous prime is 111042097. The next prime is 111042157. The reversal of 111042131 is 131240111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111042131 - 2²² = 106847827 is a prime.

It is a super-2 number, since 2×111042131² = 24660709714042322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111042161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20660 + ... + 25473.

It is an arithmetic number, because the mean of its divisors is an integer number (14532210).

Almost surely, 2^111042131 is an apocalyptic number.

111042131 is a deficient number, since it is larger than the sum of its proper divisors (5215549).

111042131 is an equidigital number, since it uses as much as digits as its factorization.

111042131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46245.

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

The square root of 111042131 is about 10537.6530119377. The cubic root of 111042131 is about 480.6503496386.

Adding to 111042131 its reverse (131240111), we get a palindrome (242282242).

The spelling of 111042131 in words is "one hundred eleven million, forty-two thousand, one hundred thirty-one".