1113437020 has 24 divisors (see below), whose sum is σ = 2418847200. Its totient is φ = 430016832.

The previous prime is 1113437011. The next prime is 1113437027. The reversal of 1113437020 is 207343111.

It is a junction number, because it is equal to n+sod(n) for n = 1113436982 and 1113437000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113437027) 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, 959280 + ... + 960439.

It is an arithmetic number, because the mean of its divisors is an integer number (100785300).

Almost surely, 2^1113437020 is an apocalyptic number.

1113437020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113437020 is an abundant number, since it is smaller than the sum of its proper divisors (1305410180).

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

1113437020 is a wasteful number, since it uses less digits than its factorization.

1113437020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919757 (or 1919755 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 1113437020 is about 33368.2037275008. The cubic root of 1113437020 is about 1036.4663789174.

The spelling of 1113437020 in words is "one billion, one hundred thirteen million, four hundred thirty-seven thousand, twenty".