1310199797 has 2 divisors, whose sum is σ = 1310199798. Its totient is φ = 1310199796.

The previous prime is 1310199791. The next prime is 1310199799. The reversal of 1310199797 is 7979910131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1297872676 + 12327121 = 36026^2 + 3511^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310199797 - 2⁶ = 1310199733 is a prime.

Together with 1310199799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310199791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655099898 + 655099899.

It is an arithmetic number, because the mean of its divisors is an integer number (655099899).

Almost surely, 2^1310199797 is an apocalyptic number.

It is an amenable number.

1310199797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310199797 is an equidigital number, since it uses as much as digits as its factorization.

1310199797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107163, while the sum is 47.

The square root of 1310199797 is about 36196.6821269574. The cubic root of 1310199797 is about 1094.2398056902.

The spelling of 1310199797 in words is "one billion, three hundred ten million, one hundred ninety-nine thousand, seven hundred ninety-seven".