12995938381 has 2 divisors, whose sum is σ = 12995938382. Its totient is φ = 12995938380.

The previous prime is 12995938339. The next prime is 12995938409. The reversal of 12995938381 is 18383959921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10385648100 + 2610290281 = 101910^2 + 51091^2 .

It is an emirp because it is prime and its reverse (18383959921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12995938381 - 2⁹ = 12995937869 is a prime.

It is a super-2 number, since 2×12995938381² (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 (12995932381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6497969190 + 6497969191.

It is an arithmetic number, because the mean of its divisors is an integer number (6497969191).

Almost surely, 2^12995938381 is an apocalyptic number.

It is an amenable number.

12995938381 is a deficient number, since it is larger than the sum of its proper divisors (1).

12995938381 is an equidigital number, since it uses as much as digits as its factorization.

12995938381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4199040, while the sum is 58.

The spelling of 12995938381 in words is "twelve billion, nine hundred ninety-five million, nine hundred thirty-eight thousand, three hundred eighty-one".