13023340421 has 16 divisors (see below), whose sum is σ = 16031885184. Its totient is φ = 10302151104.

The previous prime is 13023340391. The next prime is 13023340489. The reversal of 13023340421 is 12404332031.

It is not a de Polignac number, because 13023340421 - 2³⁰ = 11949598597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13023340321) 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, 593186 + ... + 614748.

It is an arithmetic number, because the mean of its divisors is an integer number (1001992824).

Almost surely, 2^13023340421 is an apocalyptic number.

It is an amenable number.

13023340421 is a deficient number, since it is larger than the sum of its proper divisors (3008544763).

13023340421 is a wasteful number, since it uses less digits than its factorization.

13023340421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28220.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13023340421 its reverse (12404332031), we get a palindrome (25427672452).

The spelling of 13023340421 in words is "thirteen billion, twenty-three million, three hundred forty thousand, four hundred twenty-one".