11315523320 has 64 divisors (see below), whose sum is σ = 25970440320. Its totient is φ = 4435651584.

The previous prime is 11315523319. The next prime is 11315523341. The reversal of 11315523320 is 2332551311.

It is a self number, because there is not a number n which added to its sum of digits gives 11315523320.

It is a congruent number.

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, 2187377 + ... + 2192543.

It is an arithmetic number, because the mean of its divisors is an integer number (405788130).

Almost surely, 2^11315523320 is an apocalyptic number.

11315523320 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 11315523320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12985220160).

11315523320 is an abundant number, since it is smaller than the sum of its proper divisors (14654917000).

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

11315523320 is a wasteful number, since it uses less digits than its factorization.

11315523320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6264 (or 6260 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 11315523320 in words is "eleven billion, three hundred fifteen million, five hundred twenty-three thousand, three hundred twenty".