12937067326531 has 2 divisors, whose sum is σ = 12937067326532. Its totient is φ = 12937067326530.

The previous prime is 12937067326523. The next prime is 12937067326537. The reversal of 12937067326531 is 13562376073921.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12937067326531 - 2³ = 12937067326523 is a prime.

It is a super-2 number, since 2×12937067326531² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12937067326537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6468533663265 + 6468533663266.

It is an arithmetic number, because the mean of its divisors is an integer number (6468533663266).

Almost surely, 2^{12937067326531} is an apocalyptic number.

12937067326531 is a deficient number, since it is larger than the sum of its proper divisors (1).

12937067326531 is an equidigital number, since it uses as much as digits as its factorization.

12937067326531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8573040, while the sum is 55.

The spelling of 12937067326531 in words is "twelve trillion, nine hundred thirty-seven billion, sixty-seven million, three hundred twenty-six thousand, five hundred thirty-one".