313323121321087 has 2 divisors, whose sum is σ = 313323121321088. Its totient is φ = 313323121321086.

The previous prime is 313323121321019. The next prime is 313323121321109. The reversal of 313323121321087 is 780123121323313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313323121321087 - 2¹⁵ = 313323121288319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313323121321687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156661560660543 + 156661560660544.

It is an arithmetic number, because the mean of its divisors is an integer number (156661560660544).

Almost surely, 2^{313323121321087} is an apocalyptic number.

313323121321087 is a deficient number, since it is larger than the sum of its proper divisors (1).

313323121321087 is an equidigital number, since it uses as much as digits as its factorization.

313323121321087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 313323121321087 in words is "three hundred thirteen trillion, three hundred twenty-three billion, one hundred twenty-one million, three hundred twenty-one thousand, eighty-seven".