312322320293 has 2 divisors, whose sum is σ = 312322320294. Its totient is φ = 312322320292.

The previous prime is 312322320241. The next prime is 312322320433. The reversal of 312322320293 is 392023223213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310269052324 + 2053267969 = 557018^2 + 45313^2 .

It is a cyclic number.

It is not a de Polignac number, because 312322320293 - 2⁶ = 312322320229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312322328293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156161160146 + 156161160147.

It is an arithmetic number, because the mean of its divisors is an integer number (156161160147).

Almost surely, 2^312322320293 is an apocalyptic number.

It is an amenable number.

312322320293 is a deficient number, since it is larger than the sum of its proper divisors (1).

312322320293 is an equidigital number, since it uses as much as digits as its factorization.

312322320293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 32.

The spelling of 312322320293 in words is "three hundred twelve billion, three hundred twenty-two million, three hundred twenty thousand, two hundred ninety-three".