13931048239 has 2 divisors, whose sum is σ = 13931048240. Its totient is φ = 13931048238.

The previous prime is 13931048213. The next prime is 13931048279. The reversal of 13931048239 is 93284013931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13931048239 - 2¹⁵ = 13931015471 is a prime.

It is a super-2 number, since 2×13931048239² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13931048195 and 13931048204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13931048279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6965524119 + 6965524120.

It is an arithmetic number, because the mean of its divisors is an integer number (6965524120).

Almost surely, 2^13931048239 is an apocalyptic number.

13931048239 is a deficient number, since it is larger than the sum of its proper divisors (1).

13931048239 is an equidigital number, since it uses as much as digits as its factorization.

13931048239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 13931048239 in words is "thirteen billion, nine hundred thirty-one million, forty-eight thousand, two hundred thirty-nine".