13442431139 has 2 divisors, whose sum is σ = 13442431140. Its totient is φ = 13442431138.

The previous prime is 13442431099. The next prime is 13442431151. The reversal of 13442431139 is 93113424431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13442431139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13442431099 and 13442431108.

It is not a weakly prime, because it can be changed into another prime (13442431169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6721215569 + 6721215570.

It is an arithmetic number, because the mean of its divisors is an integer number (6721215570).

Almost surely, 2^13442431139 is an apocalyptic number.

13442431139 is a deficient number, since it is larger than the sum of its proper divisors (1).

13442431139 is an equidigital number, since it uses as much as digits as its factorization.

13442431139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 35.

The spelling of 13442431139 in words is "thirteen billion, four hundred forty-two million, four hundred thirty-one thousand, one hundred thirty-nine".