1312200319 has 2 divisors, whose sum is σ = 1312200320. Its totient is φ = 1312200318.

The previous prime is 1312200289. The next prime is 1312200359. The reversal of 1312200319 is 9130022131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312200319 - 2⁹ = 1312199807 is a prime.

It is a super-2 number, since 2×1312200319² = 3443739354367403522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312200319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312200359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656100159 + 656100160.

It is an arithmetic number, because the mean of its divisors is an integer number (656100160).

Almost surely, 2^1312200319 is an apocalyptic number.

1312200319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312200319 is an equidigital number, since it uses as much as digits as its factorization.

1312200319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1312200319 is about 36224.3056386178. The cubic root of 1312200319 is about 1094.7964479194.

The spelling of 1312200319 in words is "one billion, three hundred twelve million, two hundred thousand, three hundred nineteen".