12939215383 has 2 divisors, whose sum is σ = 12939215384. Its totient is φ = 12939215382.

The previous prime is 12939215257. The next prime is 12939215407. The reversal of 12939215383 is 38351293921.

It is a strong prime.

It is an emirp because it is prime and its reverse (38351293921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12939215383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12939212383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6469607691 + 6469607692.

It is an arithmetic number, because the mean of its divisors is an integer number (6469607692).

Almost surely, 2^12939215383 is an apocalyptic number.

12939215383 is a deficient number, since it is larger than the sum of its proper divisors (1).

12939215383 is an equidigital number, since it uses as much as digits as its factorization.

12939215383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 46.

The spelling of 12939215383 in words is "twelve billion, nine hundred thirty-nine million, two hundred fifteen thousand, three hundred eighty-three".