13202400421 has 16 divisors (see below), whose sum is σ = 15503861376. Its totient is φ = 11005091136.

The previous prime is 13202400397. The next prime is 13202400457. The reversal of 13202400421 is 12400420231.

It is a cyclic number.

It is not a de Polignac number, because 13202400421 - 2⁵ = 13202400389 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 (13202400121) 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, 567990 + ... + 590776.

It is an arithmetic number, because the mean of its divisors is an integer number (968991336).

Almost surely, 2^13202400421 is an apocalyptic number.

It is an amenable number.

13202400421 is a deficient number, since it is larger than the sum of its proper divisors (2301460955).

13202400421 is a wasteful number, since it uses less digits than its factorization.

13202400421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25068.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 13202400421 its reverse (12400420231), we get a palindrome (25602820652).

The spelling of 13202400421 in words is "thirteen billion, two hundred two million, four hundred thousand, four hundred twenty-one".