1312709963 has 2 divisors, whose sum is σ = 1312709964. Its totient is φ = 1312709962.

The previous prime is 1312709941. The next prime is 1312710011. The reversal of 1312709963 is 3699072131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312709963 - 2¹⁴ = 1312693579 is a prime.

It is a super-2 number, since 2×1312709963² = 3446414893918922738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312709963.

It is not a weakly prime, because it can be changed into another prime (1312705963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656354981 + 656354982.

It is an arithmetic number, because the mean of its divisors is an integer number (656354982).

Almost surely, 2^1312709963 is an apocalyptic number.

1312709963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312709963 is an equidigital number, since it uses as much as digits as its factorization.

1312709963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 1312709963 is about 36231.3395142934. The cubic root of 1312709963 is about 1094.9381651592.

The spelling of 1312709963 in words is "one billion, three hundred twelve million, seven hundred nine thousand, nine hundred sixty-three".