13123320000 has 560 divisors, whose sum is σ = 52561175040. Its totient is φ = 2820096000.

The previous prime is 13123319999. The next prime is 13123320029. The reversal of 13123320000 is 2332131.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14279541 + ... + 14280459.

Almost surely, 2^13123320000 is an apocalyptic number.

13123320000 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 13123320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26280587520).

13123320000 is an abundant number, since it is smaller than the sum of its proper divisors (39437855040).

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

13123320000 is an equidigital number, since it uses as much as digits as its factorization.

13123320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978 (or 953 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 13123320000 its reverse (2332131), we get a palindrome (13125652131).

The spelling of 13123320000 in words is "thirteen billion, one hundred twenty-three million, three hundred twenty thousand".