1113043020 has 24 divisors (see below), whose sum is σ = 3116520624. Its totient is φ = 296811456.

The previous prime is 1113043013. The next prime is 1113043067. The reversal of 1113043020 is 203403111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

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, 9275299 + ... + 9275418.

It is an arithmetic number, because the mean of its divisors is an integer number (129855026).

Almost surely, 2^1113043020 is an apocalyptic number.

1113043020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113043020 is an abundant number, since it is smaller than the sum of its proper divisors (2003477604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1113043020 is a wasteful number, since it uses less digits than its factorization.

1113043020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18550729 (or 18550727 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1113043020 is about 33362.2993811877. The cubic root of 1113043020 is about 1036.3441100857.

Adding to 1113043020 its reverse (203403111), we get a palindrome (1316446131).

The spelling of 1113043020 in words is "one billion, one hundred thirteen million, forty-three thousand, twenty".