13234365421 has 32 divisors (see below), whose sum is σ = 13979137536. Its totient is φ = 12519360000.

The previous prime is 13234365409. The next prime is 13234365449. The reversal of 13234365421 is 12456343231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13234365421 - 2¹³ = 13234357229 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 (13234365491) 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, 62722006 + ... + 62722216.

It is an arithmetic number, because the mean of its divisors is an integer number (436848048).

Almost surely, 2^13234365421 is an apocalyptic number.

It is an amenable number.

13234365421 is a deficient number, since it is larger than the sum of its proper divisors (744772115).

13234365421 is a wasteful number, since it uses less digits than its factorization.

13234365421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613.

The product of its digits is 51840, while the sum is 34.

The spelling of 13234365421 in words is "thirteen billion, two hundred thirty-four million, three hundred sixty-five thousand, four hundred twenty-one".