1312303199 has 2 divisors, whose sum is σ = 1312303200. Its totient is φ = 1312303198.

The previous prime is 1312303163. The next prime is 1312303217. The reversal of 1312303199 is 9913032131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312303199 is a prime.

It is a super-2 number, since 2×1312303199² = 3444279372211267202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312303999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656151599 + 656151600.

It is an arithmetic number, because the mean of its divisors is an integer number (656151600).

Almost surely, 2^1312303199 is an apocalyptic number.

1312303199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312303199 is an equidigital number, since it uses as much as digits as its factorization.

1312303199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 1312303199 is about 36225.7256518072. The cubic root of 1312303199 is about 1094.8250588241.

The spelling of 1312303199 in words is "one billion, three hundred twelve million, three hundred three thousand, one hundred ninety-nine".