13113113433421 has 8 divisors (see below), whose sum is σ = 13306960035200. Its totient is φ = 12920546347632.

The previous prime is 13113113433389. The next prime is 13113113433463. The reversal of 13113113433421 is 12433431131131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13113113433421 - 2⁵ = 13113113433389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113113433491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319858350 + ... + 319899343.

It is an arithmetic number, because the mean of its divisors is an integer number (1663370004400).

Almost surely, 2^{13113113433421} is an apocalyptic number.

It is an amenable number.

13113113433421 is a deficient number, since it is larger than the sum of its proper divisors (193846601779).

13113113433421 is a wasteful number, since it uses less digits than its factorization.

13113113433421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639757995.

The product of its digits is 7776, while the sum is 31.

Adding to 13113113433421 its reverse (12433431131131), we get a palindrome (25546544564552).

The spelling of 13113113433421 in words is "thirteen trillion, one hundred thirteen billion, one hundred thirteen million, four hundred thirty-three thousand, four hundred twenty-one".