312119750489 has 2 divisors, whose sum is σ = 312119750490. Its totient is φ = 312119750488.

The previous prime is 312119750477. The next prime is 312119750497. The reversal of 312119750489 is 984057911213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186744979600 + 125374770889 = 432140^2 + 354083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312119750489 is a prime.

It is not a weakly prime, because it can be changed into another prime (312719750489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156059875244 + 156059875245.

It is an arithmetic number, because the mean of its divisors is an integer number (156059875245).

Almost surely, 2^312119750489 is an apocalyptic number.

It is an amenable number.

312119750489 is a deficient number, since it is larger than the sum of its proper divisors (1).

312119750489 is an equidigital number, since it uses as much as digits as its factorization.

312119750489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 312119750489 in words is "three hundred twelve billion, one hundred nineteen million, seven hundred fifty thousand, four hundred eighty-nine".