1312955603 has 2 divisors, whose sum is σ = 1312955604. Its totient is φ = 1312955602.

The previous prime is 1312955597. The next prime is 1312955627. The reversal of 1312955603 is 3065592131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312955603 - 2²⁰ = 1311907027 is a prime.

It is not a weakly prime, because it can be changed into another prime (1312955653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656477801 + 656477802.

It is an arithmetic number, because the mean of its divisors is an integer number (656477802).

Almost surely, 2^1312955603 is an apocalyptic number.

1312955603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312955603 is an equidigital number, since it uses as much as digits as its factorization.

1312955603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 1312955603 is about 36234.7292386738. The cubic root of 1312955603 is about 1095.0064574308.

The spelling of 1312955603 in words is "one billion, three hundred twelve million, nine hundred fifty-five thousand, six hundred three".