1312450663 has 2 divisors, whose sum is σ = 1312450664. Its totient is φ = 1312450662.

The previous prime is 1312450619. The next prime is 1312450673. The reversal of 1312450663 is 3660542131.

It is a strong prime.

It is an emirp because it is prime and its reverse (3660542131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312450663 - 2⁹ = 1312450151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312450603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656225331 + 656225332.

It is an arithmetic number, because the mean of its divisors is an integer number (656225332).

Almost surely, 2^1312450663 is an apocalyptic number.

1312450663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312450663 is an equidigital number, since it uses as much as digits as its factorization.

1312450663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1312450663 is about 36227.7609437845. The cubic root of 1312450663 is about 1094.8660659216.

Adding to 1312450663 its reverse (3660542131), we get a palindrome (4972992794).

The spelling of 1312450663 in words is "one billion, three hundred twelve million, four hundred fifty thousand, six hundred sixty-three".