1310223917 has 2 divisors, whose sum is σ = 1310223918. Its totient is φ = 1310223916.

The previous prime is 1310223899. The next prime is 1310223923. The reversal of 1310223917 is 7193220131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1229834761 + 80389156 = 35069^2 + 8966^2 .

It is an emirp because it is prime and its reverse (7193220131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1310223917 - 2⁶ = 1310223853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1310223917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310223997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655111958 + 655111959.

It is an arithmetic number, because the mean of its divisors is an integer number (655111959).

Almost surely, 2^1310223917 is an apocalyptic number.

It is an amenable number.

1310223917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310223917 is an equidigital number, since it uses as much as digits as its factorization.

1310223917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 1310223917 is about 36197.0153051325. The cubic root of 1310223917 is about 1094.2465204172.

The spelling of 1310223917 in words is "one billion, three hundred ten million, two hundred twenty-three thousand, nine hundred seventeen".