1113312131 has 2 divisors, whose sum is σ = 1113312132. Its totient is φ = 1113312130.

The previous prime is 1113312119. The next prime is 1113312143. The reversal of 1113312131 is 1312133111.

It is a balanced prime because it is at equal distance from previous prime (1113312119) and next prime (1113312143).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113312131 is a prime.

It is a super-2 number, since 2×1113312131² = 2478927802063522322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1113312191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556656065 + 556656066.

It is an arithmetic number, because the mean of its divisors is an integer number (556656066).

Almost surely, 2^1113312131 is an apocalyptic number.

1113312131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113312131 is an equidigital number, since it uses as much as digits as its factorization.

1113312131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54, while the sum is 17.

The square root of 1113312131 is about 33366.3322976919. The cubic root of 1113312131 is about 1036.4276256135.

Adding to 1113312131 its reverse (1312133111), we get a palindrome (2425445242).

The spelling of 1113312131 in words is "one billion, one hundred thirteen million, three hundred twelve thousand, one hundred thirty-one".