1312210320319 has 2 divisors, whose sum is σ = 1312210320320. Its totient is φ = 1312210320318.

The previous prime is 1312210320167. The next prime is 1312210320347. The reversal of 1312210320319 is 9130230122131.

It is an a-pointer prime, because the next prime (1312210320347) can be obtained adding 1312210320319 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312210320319 - 2¹¹ = 1312210318271 is a prime.

It is a super-2 number, since 2×1312210320319² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312210320419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656105160159 + 656105160160.

It is an arithmetic number, because the mean of its divisors is an integer number (656105160160).

Almost surely, 2^{1312210320319} is an apocalyptic number.

1312210320319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312210320319 is an equidigital number, since it uses as much as digits as its factorization.

1312210320319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 1312210320319 in words is "one trillion, three hundred twelve billion, two hundred ten million, three hundred twenty thousand, three hundred nineteen".