13134379421 has 4 divisors (see below), whose sum is σ = 13144460832. Its totient is φ = 13124298012.

The previous prime is 13134379417. The next prime is 13134379463. The reversal of 13134379421 is 12497343131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13134379421 - 2² = 13134379417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13134379411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5038751 + ... + 5041356.

It is an arithmetic number, because the mean of its divisors is an integer number (3286115208).

Almost surely, 2^13134379421 is an apocalyptic number.

It is an amenable number.

13134379421 is a deficient number, since it is larger than the sum of its proper divisors (10081411).

13134379421 is a wasteful number, since it uses less digits than its factorization.

13134379421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10081410.

The product of its digits is 54432, while the sum is 38.

The spelling of 13134379421 in words is "thirteen billion, one hundred thirty-four million, three hundred seventy-nine thousand, four hundred twenty-one".