1313125699 has 2 divisors, whose sum is σ = 1313125700. Its totient is φ = 1313125698.

The previous prime is 1313125687. The next prime is 1313125703. The reversal of 1313125699 is 9965213131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1313125699 - 2⁷ = 1313125571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1313125609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656562849 + 656562850.

It is an arithmetic number, because the mean of its divisors is an integer number (656562850).

Almost surely, 2^1313125699 is an apocalyptic number.

1313125699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313125699 is an equidigital number, since it uses as much as digits as its factorization.

1313125699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 40.

The square root of 1313125699 is about 36237.0763031456. The cubic root of 1313125699 is about 1095.0537421411.

The spelling of 1313125699 in words is "one billion, three hundred thirteen million, one hundred twenty-five thousand, six hundred ninety-nine".