312313120411987 has 2 divisors, whose sum is σ = 312313120411988. Its totient is φ = 312313120411986.

The previous prime is 312313120411967. The next prime is 312313120412017. The reversal of 312313120411987 is 789114021313213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312313120411987 is a prime.

It is a super-2 number, since 2×312313120411987² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (312313120411937) 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, 156156560205993 + 156156560205994.

It is an arithmetic number, because the mean of its divisors is an integer number (156156560205994).

Almost surely, 2^{312313120411987} is an apocalyptic number.

312313120411987 is a deficient number, since it is larger than the sum of its proper divisors (1).

312313120411987 is an equidigital number, since it uses as much as digits as its factorization.

312313120411987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 312313120411987 in words is "three hundred twelve trillion, three hundred thirteen billion, one hundred twenty million, four hundred eleven thousand, nine hundred eighty-seven".