312022319993 has 2 divisors, whose sum is σ = 312022319994. Its totient is φ = 312022319992.

The previous prime is 312022319957. The next prime is 312022320013. The reversal of 312022319993 is 399913220213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275091858064 + 36930461929 = 524492^2 + 192173^2 .

It is a cyclic number.

It is not a de Polignac number, because 312022319993 - 2¹⁴ = 312022303609 is a prime.

It is not a weakly prime, because it can be changed into another prime (312022319933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156011159996 + 156011159997.

It is an arithmetic number, because the mean of its divisors is an integer number (156011159997).

Almost surely, 2^312022319993 is an apocalyptic number.

It is an amenable number.

312022319993 is a deficient number, since it is larger than the sum of its proper divisors (1).

312022319993 is an equidigital number, since it uses as much as digits as its factorization.

312022319993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157464, while the sum is 44.

The spelling of 312022319993 in words is "three hundred twelve billion, twenty-two million, three hundred nineteen thousand, nine hundred ninety-three".