1113412320 has 144 divisors (see below), whose sum is σ = 3808389312. Its totient is φ = 296217600.

The previous prime is 1113412309. The next prime is 1113412327. The reversal of 1113412320 is 232143111.

1113412320 is a `hidden beast` number, since 1 + 1 + 1 + 341 + 2 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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 = 1113412293 and 1113412302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113412327) 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 23 ways as a sum of consecutive naturals, for example, 1008889 + ... + 1009991.

It is an arithmetic number, because the mean of its divisors is an integer number (26447148).

Almost surely, 2^1113412320 is an apocalyptic number.

1113412320 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 1113412320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1904194656).

1113412320 is an abundant number, since it is smaller than the sum of its proper divisors (2694976992).

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

1113412320 is a wasteful number, since it uses less digits than its factorization.

1113412320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825 (or 1814 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1113412320 is about 33367.8336126276. The cubic root of 1113412320 is about 1036.4587146884.

Adding to 1113412320 its reverse (232143111), we get a palindrome (1345555431).

The spelling of 1113412320 in words is "one billion, one hundred thirteen million, four hundred twelve thousand, three hundred twenty".