13204112425421 has 32 divisors (see below), whose sum is σ = 14336610951168. Its totient is φ = 12113332145920.

The previous prime is 13204112425417. The next prime is 13204112425433. The reversal of 13204112425421 is 12452421140231.

It is not a de Polignac number, because 13204112425421 - 2² = 13204112425417 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 (13204112425321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1036179176 + ... + 1036191918.

It is an arithmetic number, because the mean of its divisors is an integer number (448019092224).

Almost surely, 2^{13204112425421} is an apocalyptic number.

It is an amenable number.

13204112425421 is a deficient number, since it is larger than the sum of its proper divisors (1132498525747).

13204112425421 is a wasteful number, since it uses less digits than its factorization.

13204112425421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18001.

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 13204112425421 its reverse (12452421140231), we get a palindrome (25656533565652).

The spelling of 13204112425421 in words is "thirteen trillion, two hundred four billion, one hundred twelve million, four hundred twenty-five thousand, four hundred twenty-one".