1312223231219 has 2 divisors, whose sum is σ = 1312223231220. Its totient is φ = 1312223231218.

The previous prime is 1312223231197. The next prime is 1312223231227. The reversal of 1312223231219 is 9121323222131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312223231219 - 2¹⁶ = 1312223165683 is a prime.

It is a super-2 number, since 2×1312223231219² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1312223237219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656111615609 + 656111615610.

It is an arithmetic number, because the mean of its divisors is an integer number (656111615610).

Almost surely, 2^{1312223231219} is an apocalyptic number.

1312223231219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312223231219 is an equidigital number, since it uses as much as digits as its factorization.

1312223231219 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 1312223231219 in words is "one trillion, three hundred twelve billion, two hundred twenty-three million, two hundred thirty-one thousand, two hundred nineteen".