13123210020000 has 240 divisors, whose sum is σ = 43062413641632. Its totient is φ = 3498249600000.

The previous prime is 13123210019993. The next prime is 13123210020017. The reversal of 13123210020000 is 2001232131.

13123210020000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 171021642 + ... + 171098358.

Almost surely, 2^{13123210020000} is an apocalyptic number.

13123210020000 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 13123210020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21531206820816).

13123210020000 is an abundant number, since it is smaller than the sum of its proper divisors (29939203621632).

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

13123210020000 is an equidigital number, since it uses as much as digits as its factorization.

13123210020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79601 (or 79578 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13123210020000 its reverse (2001232131), we get a palindrome (13125211252131).

The spelling of 13123210020000 in words is "thirteen trillion, one hundred twenty-three billion, two hundred ten million, twenty thousand".