1312210320297 has 4 divisors (see below), whose sum is σ = 1749613760400. Its totient is φ = 874806880196.

The previous prime is 1312210320167. The next prime is 1312210320319. The reversal of 1312210320297 is 7920230122131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1312210320297 - 2²⁶ = 1312143211433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312210321297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218701720047 + ... + 218701720052.

It is an arithmetic number, because the mean of its divisors is an integer number (437403440100).

Almost surely, 2^{1312210320297} is an apocalyptic number.

It is an amenable number.

1312210320297 is a deficient number, since it is larger than the sum of its proper divisors (437403440103).

1312210320297 is an equidigital number, since it uses as much as digits as its factorization.

1312210320297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437403440102.

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 1312210320297 in words is "one trillion, three hundred twelve billion, two hundred ten million, three hundred twenty thousand, two hundred ninety-seven".