1112311131 has 12 divisors (see below), whose sum is σ = 1524253752. Its totient is φ = 721496448.

The previous prime is 1112311127. The next prime is 1112311141. The reversal of 1112311131 is 1311132111.

It is not a de Polignac number, because 1112311131 - 2² = 1112311127 is a prime.

It is a super-2 number, since 2×1112311131² = 2474472104292998322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1112311131.

It is not an unprimeable number, because it can be changed into a prime (1112311141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131310 + ... + 139523.

It is an arithmetic number, because the mean of its divisors is an integer number (127021146).

Almost surely, 2^1112311131 is an apocalyptic number.

1112311131 is a deficient number, since it is larger than the sum of its proper divisors (411942621).

1112311131 is an equidigital number, since it uses as much as digits as its factorization.

1112311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270910 (or 270873 counting only the distinct ones).

The product of its digits is 18, while the sum is 15.

The square root of 1112311131 is about 33351.3287741283. The cubic root of 1112311131 is about 1036.1169085755.

Adding to 1112311131 its reverse (1311132111), we get a palindrome (2423443242).

The spelling of 1112311131 in words is "one billion, one hundred twelve million, three hundred eleven thousand, one hundred thirty-one".