12322001987 has 2 divisors, whose sum is σ = 12322001988. Its totient is φ = 12322001986.

The previous prime is 12322001977. The next prime is 12322002061. The reversal of 12322001987 is 78910022321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12322001987 - 2²² = 12317807683 is a prime.

It is not a weakly prime, because it can be changed into another prime (12322001927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6161000993 + 6161000994.

It is an arithmetic number, because the mean of its divisors is an integer number (6161000994).

Almost surely, 2^12322001987 is an apocalyptic number.

12322001987 is a deficient number, since it is larger than the sum of its proper divisors (1).

12322001987 is an equidigital number, since it uses as much as digits as its factorization.

12322001987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 12322001987 in words is "twelve billion, three hundred twenty-two million, one thousand, nine hundred eighty-seven".