1111112131 has 16 divisors (see below), whose sum is σ = 1162782720. Its totient is φ = 1060829280.

The previous prime is 1111112117. The next prime is 1111112141. The reversal of 1111112131 is 1312111111.

It is not a de Polignac number, because 1111112131 - 2⁵ = 1111112099 is a prime.

It is a super-2 number, since 2×1111112131² = 2469140335310722322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111112141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483421 + ... + 485713.

It is an arithmetic number, because the mean of its divisors is an integer number (72673920).

Almost surely, 2^1111112131 is an apocalyptic number.

1111112131 is a deficient number, since it is larger than the sum of its proper divisors (51670589).

1111112131 is a wasteful number, since it uses less digits than its factorization.

1111112131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586.

The product of its digits is 6, while the sum is 13.

The square root of 1111112131 is about 33333.3486316632. The cubic root of 1111112131 is about 1035.7444855544.

Adding to 1111112131 its reverse (1312111111), we get a palindrome (2423223242).

The spelling of 1111112131 in words is "one billion, one hundred eleven million, one hundred twelve thousand, one hundred thirty-one".