1312231322219 has 2 divisors, whose sum is σ = 1312231322220. Its totient is φ = 1312231322218.

The previous prime is 1312231322161. The next prime is 1312231322251. The reversal of 1312231322219 is 9122231322131.

It is an a-pointer prime, because the next prime (1312231322251) can be obtained adding 1312231322219 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312231322219 is a prime.

It is a super-2 number, since 2×1312231322219² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1312231322419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656115661109 + 656115661110.

It is an arithmetic number, because the mean of its divisors is an integer number (656115661110).

Almost surely, 2^{1312231322219} is an apocalyptic number.

1312231322219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312231322219 is an equidigital number, since it uses as much as digits as its factorization.

1312231322219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The spelling of 1312231322219 in words is "one trillion, three hundred twelve billion, two hundred thirty-one million, three hundred twenty-two thousand, two hundred nineteen".