11313981120 has 448 divisors, whose sum is σ = 41006085120. Its totient is φ = 2622799872.

The previous prime is 11313981109. The next prime is 11313981127. The reversal of 11313981120 is 2118931311.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (11313981127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15562197 + ... + 15562923.

It is an arithmetic number, because the mean of its divisors is an integer number (91531440).

Almost surely, 2^11313981120 is an apocalyptic number.

11313981120 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 11313981120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20503042560).

11313981120 is an abundant number, since it is smaller than the sum of its proper divisors (29692104000).

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

11313981120 is a wasteful number, since it uses less digits than its factorization.

11313981120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 11313981120 in words is "eleven billion, three hundred thirteen million, nine hundred eighty-one thousand, one hundred twenty".