13420136352 has 96 divisors (see below), whose sum is σ = 41117110272. Its totient is φ = 3752734464.

The previous prime is 13420136339. The next prime is 13420136357. The reversal of 13420136352 is 25363102431.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (13420136357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180868 + ... + 244035.

It is an arithmetic number, because the mean of its divisors is an integer number (428303232).

Almost surely, 2^13420136352 is an apocalyptic number.

13420136352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13420136352 is an abundant number, since it is smaller than the sum of its proper divisors (27696973920).

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

13420136352 is a wasteful number, since it uses less digits than its factorization.

13420136352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424970 (or 424962 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 13420136352 its reverse (25363102431), we get a palindrome (38783238783).

The spelling of 13420136352 in words is "thirteen billion, four hundred twenty million, one hundred thirty-six thousand, three hundred fifty-two".