13123444319 has 2 divisors, whose sum is σ = 13123444320. Its totient is φ = 13123444318.

The previous prime is 13123444307. The next prime is 13123444361. The reversal of 13123444319 is 91344432131.

It is a weak prime.

It is an emirp because it is prime and its reverse (91344432131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13123444319 - 2⁸ = 13123444063 is a prime.

It is a super-2 number, since 2×13123444319² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13122444319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561722159 + 6561722160.

It is an arithmetic number, because the mean of its divisors is an integer number (6561722160).

Almost surely, 2^13123444319 is an apocalyptic number.

13123444319 is a deficient number, since it is larger than the sum of its proper divisors (1).

13123444319 is an equidigital number, since it uses as much as digits as its factorization.

13123444319 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 13123444319 in words is "thirteen billion, one hundred twenty-three million, four hundred forty-four thousand, three hundred nineteen".