1113268520 has 128 divisors (see below), whose sum is σ = 3245356800. Its totient is φ = 333766656.

The previous prime is 1113268487. The next prime is 1113268601. The reversal of 1113268520 is 258623111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61112 + ... + 77208.

It is an arithmetic number, because the mean of its divisors is an integer number (25354350).

Almost surely, 2^1113268520 is an apocalyptic number.

1113268520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113268520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1622678400).

1113268520 is an abundant number, since it is smaller than the sum of its proper divisors (2132088280).

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

1113268520 is a wasteful number, since it uses less digits than its factorization.

1113268520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16147 (or 16143 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1113268520 is about 33365.6787732544. The cubic root of 1113268520 is about 1036.4140923512.

The spelling of 1113268520 in words is "one billion, one hundred thirteen million, two hundred sixty-eight thousand, five hundred twenty".