1312495103 has 2 divisors, whose sum is σ = 1312495104. Its totient is φ = 1312495102.

The previous prime is 1312495057. The next prime is 1312495109. The reversal of 1312495103 is 3015942131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312495103 - 2⁶ = 1312495039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312495109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656247551 + 656247552.

It is an arithmetic number, because the mean of its divisors is an integer number (656247552).

Almost surely, 2^1312495103 is an apocalyptic number.

1312495103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312495103 is an equidigital number, since it uses as much as digits as its factorization.

1312495103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1312495103 is about 36228.3742803897. The cubic root of 1312495103 is about 1094.8784232874.

The spelling of 1312495103 in words is "one billion, three hundred twelve million, four hundred ninety-five thousand, one hundred three".