1113133440 has 64 divisors (see below), whose sum is σ = 3548118960. Its totient is φ = 296835072.

The previous prime is 1113133421. The next prime is 1113133457. The reversal of 1113133440 is 443313111.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287959 + ... + 291798.

Almost surely, 2^1113133440 is an apocalyptic number.

1113133440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113133440 is an abundant number, since it is smaller than the sum of its proper divisors (2434985520).

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

1113133440 is an equidigital number, since it uses as much as digits as its factorization.

1113133440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579779 (or 579767 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1113133440 is about 33363.6544760912. The cubic root of 1113133440 is about 1036.3721724023.

Adding to 1113133440 its reverse (443313111), we get a palindrome (1556446551).

The spelling of 1113133440 in words is "one billion, one hundred thirteen million, one hundred thirty-three thousand, four hundred forty".