1113031131 has 8 divisors (see below), whose sum is σ = 1488446544. Its totient is φ = 739818240.

The previous prime is 1113031103. The next prime is 1113031147. The reversal of 1113031131 is 1311303111.

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

It is a de Polignac number, because none of the positive numbers 2^k-1113031131 is a prime.

It is a super-2 number, since 2×1113031131² = 2477676597150278322, 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 1113031131.

It is not an unprimeable number, because it can be changed into a prime (1113031631) 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, 549450 + ... + 551471.

It is an arithmetic number, because the mean of its divisors is an integer number (186055818).

Almost surely, 2^1113031131 is an apocalyptic number.

1113031131 is a deficient number, since it is larger than the sum of its proper divisors (375415413).

1113031131 is a wasteful number, since it uses less digits than its factorization.

1113031131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101261.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 1113031131 is about 33362.1212005472. The cubic root of 1113031131 is about 1036.3404201597.

Adding to 1113031131 its reverse (1311303111), we get a palindrome (2424334242).

The spelling of 1113031131 in words is "one billion, one hundred thirteen million, thirty-one thousand, one hundred thirty-one".