12942081137 has 2 divisors, whose sum is σ = 12942081138. Its totient is φ = 12942081136.

The previous prime is 12942081127. The next prime is 12942081151. The reversal of 12942081137 is 73118024921.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6619286881 + 6322794256 = 81359^2 + 79516^2 .

It is a cyclic number.

It is not a de Polignac number, because 12942081137 - 2⁶ = 12942081073 is a prime.

It is a super-3 number, since 3×12942081137³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12942081137.

It is not a weakly prime, because it can be changed into another prime (12942081107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6471040568 + 6471040569.

It is an arithmetic number, because the mean of its divisors is an integer number (6471040569).

Almost surely, 2^12942081137 is an apocalyptic number.

It is an amenable number.

12942081137 is a deficient number, since it is larger than the sum of its proper divisors (1).

12942081137 is an equidigital number, since it uses as much as digits as its factorization.

12942081137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 12942081137 in words is "twelve billion, nine hundred forty-two million, eighty-one thousand, one hundred thirty-seven".