11199901320 has 64 divisors (see below), whose sum is σ = 37333008000. Its totient is φ = 2986640064.

The previous prime is 11199901301. The next prime is 11199901343. The reversal of 11199901320 is 2310999111.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5184060 + ... + 5186219.

It is an arithmetic number, because the mean of its divisors is an integer number (583328250).

Almost surely, 2^11199901320 is an apocalyptic number.

11199901320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11199901320 is an abundant number, since it is smaller than the sum of its proper divisors (26133106680).

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

11199901320 is a wasteful number, since it uses less digits than its factorization.

11199901320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10370299 (or 10370289 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 36.

The spelling of 11199901320 in words is "eleven billion, one hundred ninety-nine million, nine hundred one thousand, three hundred twenty".