1113403031 has 16 divisors (see below), whose sum is σ = 1211556864. Its totient is φ = 1017080064.

The previous prime is 1113403019. The next prime is 1113403033. The reversal of 1113403031 is 1303043111.

It is not a de Polignac number, because 1113403031 - 2¹⁰ = 1113402007 is a prime.

It is a super-2 number, since 2×1113403031² = 2479332618879973922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113403033) 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, 1018121 + ... + 1019213.

It is an arithmetic number, because the mean of its divisors is an integer number (75722304).

Almost surely, 2^1113403031 is an apocalyptic number.

1113403031 is a deficient number, since it is larger than the sum of its proper divisors (98153833).

1113403031 is a wasteful number, since it uses less digits than its factorization.

1113403031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1113403031 is about 33367.6944214011. The cubic root of 1113403031 is about 1036.4558323505.

Adding to 1113403031 its reverse (1303043111), we get a palindrome (2416446142).

The spelling of 1113403031 in words is "one billion, one hundred thirteen million, four hundred three thousand, thirty-one".