13131201411421 has 4 divisors (see below), whose sum is σ = 13822317275200. Its totient is φ = 12440085547644.

The previous prime is 13131201411409. The next prime is 13131201411457. The reversal of 13131201411421 is 12411410213131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13131201411421 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 (13131201411491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345557931861 + ... + 345557931898.

It is an arithmetic number, because the mean of its divisors is an integer number (3455579318800).

Almost surely, 2^{13131201411421} is an apocalyptic number.

It is an amenable number.

13131201411421 is a deficient number, since it is larger than the sum of its proper divisors (691115863779).

13131201411421 is an equidigital number, since it uses as much as digits as its factorization.

13131201411421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691115863778.

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 13131201411421 its reverse (12411410213131), we get a palindrome (25542611624552).

The spelling of 13131201411421 in words is "thirteen trillion, one hundred thirty-one billion, two hundred one million, four hundred eleven thousand, four hundred twenty-one".