312300000012197 has 2 divisors, whose sum is σ = 312300000012198. Its totient is φ = 312300000012196.

The previous prime is 312300000012179. The next prime is 312300000012283. The reversal of 312300000012197 is 791210000003213.

Together with previous prime (312300000012179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 305840427030436 + 6459572981761 = 17488294^2 + 2541569^2 .

It is a cyclic number.

It is not a de Polignac number, because 312300000012197 - 2²⁶ = 312299932903333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312300000002197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156150000006098 + 156150000006099.

It is an arithmetic number, because the mean of its divisors is an integer number (156150000006099).

Almost surely, 2^{312300000012197} is an apocalyptic number.

It is an amenable number.

312300000012197 is a deficient number, since it is larger than the sum of its proper divisors (1).

312300000012197 is an equidigital number, since it uses as much as digits as its factorization.

312300000012197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The spelling of 312300000012197 in words is "three hundred twelve trillion, three hundred billion, twelve thousand, one hundred ninety-seven".