1113331320 has 48 divisors (see below), whose sum is σ = 3618327960. Its totient is φ = 296888256.

The previous prime is 1113331319. The next prime is 1113331321. The reversal of 1113331320 is 231333111.

It is a happy number.

1113331320 is a `hidden beast` number, since 1 + 1 + 13 + 331 + 320 = 666.

It is an interprime number because it is at equal distance from previous prime (1113331319) and next prime (1113331321).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1113331293 and 1113331302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113331321) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1545934 + ... + 1546653.

Almost surely, 2^1113331320 is an apocalyptic number.

1113331320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113331320 is an abundant number, since it is smaller than the sum of its proper divisors (2504996640).

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

1113331320 is a wasteful number, since it uses less digits than its factorization.

1113331320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092604 (or 3092597 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1113331320 is about 33366.6198467870. The cubic root of 1113331320 is about 1036.4335801867.

Adding to 1113331320 its reverse (231333111), we get a palindrome (1344664431).

The spelling of 1113331320 in words is "one billion, one hundred thirteen million, three hundred thirty-one thousand, three hundred twenty".