312102939877 has 2 divisors, whose sum is σ = 312102939878. Its totient is φ = 312102939876.

The previous prime is 312102939833. The next prime is 312102939917. The reversal of 312102939877 is 778939201213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230600683681 + 81502256196 = 480209^2 + 285486^2 .

It is an emirp because it is prime and its reverse (778939201213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312102939877 - 2⁷ = 312102939749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312102939277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156051469938 + 156051469939.

It is an arithmetic number, because the mean of its divisors is an integer number (156051469939).

Almost surely, 2^312102939877 is an apocalyptic number.

It is an amenable number.

312102939877 is a deficient number, since it is larger than the sum of its proper divisors (1).

312102939877 is an equidigital number, since it uses as much as digits as its factorization.

312102939877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 312102939877 in words is "three hundred twelve billion, one hundred two million, nine hundred thirty-nine thousand, eight hundred seventy-seven".