13234210232421 has 64 divisors (see below), whose sum is σ = 18616005999360. Its totient is φ = 8353330053120.

The previous prime is 13234210232363. The next prime is 13234210232437. The reversal of 13234210232421 is 12423201243231.

It is a happy number.

It is not a de Polignac number, because 13234210232421 - 2⁶ = 13234210232357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13234210239421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1767149445 + ... + 1767156933.

It is an arithmetic number, because the mean of its divisors is an integer number (290875093740).

Almost surely, 2^{13234210232421} is an apocalyptic number.

It is an amenable number.

13234210232421 is a deficient number, since it is larger than the sum of its proper divisors (5381795766939).

13234210232421 is a wasteful number, since it uses less digits than its factorization.

13234210232421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 13234210232421 its reverse (12423201243231), we get a palindrome (25657411475652).

The spelling of 13234210232421 in words is "thirteen trillion, two hundred thirty-four billion, two hundred ten million, two hundred thirty-two thousand, four hundred twenty-one".