11299019520 has 144 divisors (see below), whose sum is σ = 36595383552. Its totient is φ = 2970562560.

The previous prime is 11299019509. The next prime is 11299019539. The reversal of 11299019520 is 2591099211.

It is a super-2 number, since 2×11299019520² (a number of 21 digits) contains 22 as substring.

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, 251919 + ... + 293361.

It is an arithmetic number, because the mean of its divisors is an integer number (254134608).

Almost surely, 2^11299019520 is an apocalyptic number.

11299019520 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 11299019520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18297691776).

11299019520 is an abundant number, since it is smaller than the sum of its proper divisors (25296364032).

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

11299019520 is an equidigital number, since it uses as much as digits as its factorization.

11299019520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41538 (or 41524 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 39.

The spelling of 11299019520 in words is "eleven billion, two hundred ninety-nine million, nineteen thousand, five hundred twenty".