1113304520 has 32 divisors (see below), whose sum is σ = 2507915520. Its totient is φ = 444792000.

The previous prime is 1113304501. The next prime is 1113304537. The reversal of 1113304520 is 254033111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1113304492 and 1113304501.

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, 18395 + ... + 50645.

It is an arithmetic number, because the mean of its divisors is an integer number (78372360).

Almost surely, 2^1113304520 is an apocalyptic number.

1113304520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113304520 is an abundant number, since it is smaller than the sum of its proper divisors (1394611000).

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

1113304520 is a wasteful number, since it uses less digits than its factorization.

1113304520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33125 (or 33121 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1113304520 is about 33366.2182454050. The cubic root of 1113304520 is about 1036.4252638115.

Adding to 1113304520 its reverse (254033111), we get a palindrome (1367337631).

The spelling of 1113304520 in words is "one billion, one hundred thirteen million, three hundred four thousand, five hundred twenty".