13123345425420 has 48 divisors (see below), whose sum is σ = 36773698455648. Its totient is φ = 3496860564480.

The previous prime is 13123345425373. The next prime is 13123345425451. The reversal of 13123345425420 is 2452454332131.

It is a happy number.

13123345425420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 84240771 + ... + 84396410.

It is an arithmetic number, because the mean of its divisors is an integer number (766118717826).

Almost surely, 2^{13123345425420} is an apocalyptic number.

13123345425420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123345425420 is an abundant number, since it is smaller than the sum of its proper divisors (23650353030228).

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

13123345425420 is a wasteful number, since it uses less digits than its factorization.

13123345425420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168638490 (or 168638488 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 13123345425420 its reverse (2452454332131), we get a palindrome (15575799757551).

The spelling of 13123345425420 in words is "thirteen trillion, one hundred twenty-three billion, three hundred forty-five million, four hundred twenty-five thousand, four hundred twenty".