13421121339 has 4 divisors (see below), whose sum is σ = 17894828456. Its totient is φ = 8947414224.

The previous prime is 13421121319. The next prime is 13421121383. The reversal of 13421121339 is 93312112431.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13421121339 - 2⁸ = 13421121083 is a prime.

It is a super-2 number, since 2×13421121339² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13421121319) 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, 2236853554 + ... + 2236853559.

It is an arithmetic number, because the mean of its divisors is an integer number (4473707114).

Almost surely, 2^13421121339 is an apocalyptic number.

13421121339 is a deficient number, since it is larger than the sum of its proper divisors (4473707117).

13421121339 is an equidigital number, since it uses as much as digits as its factorization.

13421121339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4473707116.

The product of its digits is 3888, while the sum is 30.

The spelling of 13421121339 in words is "thirteen billion, four hundred twenty-one million, one hundred twenty-one thousand, three hundred thirty-nine".