13334423421 has 48 divisors (see below), whose sum is σ = 21130979328. Its totient is φ = 7408951200.

The previous prime is 13334423407. The next prime is 13334423423. The reversal of 13334423421 is 12432443331.

It is a happy number.

It is not a de Polignac number, because 13334423421 - 2¹⁰ = 13334422397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13334423423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 351250 + ... + 387356.

It is an arithmetic number, because the mean of its divisors is an integer number (440228736).

Almost surely, 2^13334423421 is an apocalyptic number.

13334423421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13334423421 is a deficient number, since it is larger than the sum of its proper divisors (7796555907).

13334423421 is a wasteful number, since it uses less digits than its factorization.

13334423421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36190 (or 36171 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

Adding to 13334423421 its reverse (12432443331), we get a palindrome (25766866752).

The spelling of 13334423421 in words is "thirteen billion, three hundred thirty-four million, four hundred twenty-three thousand, four hundred twenty-one".