1313340247 has 2 divisors, whose sum is σ = 1313340248. Its totient is φ = 1313340246.

The previous prime is 1313340241. The next prime is 1313340251. The reversal of 1313340247 is 7420433131.

It is a strong prime.

It is an emirp because it is prime and its reverse (7420433131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1313340247 - 2²³ = 1304951639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313340241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656670123 + 656670124.

It is an arithmetic number, because the mean of its divisors is an integer number (656670124).

Almost surely, 2^1313340247 is an apocalyptic number.

1313340247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313340247 is an equidigital number, since it uses as much as digits as its factorization.

1313340247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 1313340247 is about 36240.0365204010. The cubic root of 1313340247 is about 1095.1133781673.

Adding to 1313340247 its reverse (7420433131), we get a palindrome (8733773378).

The spelling of 1313340247 in words is "one billion, three hundred thirteen million, three hundred forty thousand, two hundred forty-seven".