312300032221949 has 2 divisors, whose sum is σ = 312300032221950. Its totient is φ = 312300032221948.

The previous prime is 312300032221913. The next prime is 312300032221973. The reversal of 312300032221949 is 949122230003213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201648946099225 + 110651086122724 = 14200315^2 + 10519082^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312300032221949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312300032221909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156150016110974 + 156150016110975.

It is an arithmetic number, because the mean of its divisors is an integer number (156150016110975).

Almost surely, 2^{312300032221949} is an apocalyptic number.

It is an amenable number.

312300032221949 is a deficient number, since it is larger than the sum of its proper divisors (1).

312300032221949 is an equidigital number, since it uses as much as digits as its factorization.

312300032221949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 312300032221949 in words is "three hundred twelve trillion, three hundred billion, thirty-two million, two hundred twenty-one thousand, nine hundred forty-nine".