1113131131 has 8 divisors (see below), whose sum is σ = 1339105280. Its totient is φ = 903895848.

The previous prime is 1113131119. The next prime is 1113131141. The reversal of 1113131131 is 1311313111.

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 1113131131 - 2⁷ = 1113131003 is a prime.

It is a super-2 number, since 2×1113131131² = 2478121829602678322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113131101) 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 7 ways as a sum of consecutive naturals, for example, 4184571 + ... + 4184836.

It is an arithmetic number, because the mean of its divisors is an integer number (167388160).

Almost surely, 2^1113131131 is an apocalyptic number.

1113131131 is a deficient number, since it is larger than the sum of its proper divisors (225974149).

1113131131 is an equidigital number, since it uses as much as digits as its factorization.

1113131131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8369433.

The product of its digits is 27, while the sum is 16.

The square root of 1113131131 is about 33363.6198725498. The cubic root of 1113131131 is about 1036.3714558111.

Adding to 1113131131 its reverse (1311313111), we get a palindrome (2424444242).

The spelling of 1113131131 in words is "one billion, one hundred thirteen million, one hundred thirty-one thousand, one hundred thirty-one".