1312250503 has 2 divisors, whose sum is σ = 1312250504. Its totient is φ = 1312250502.

The previous prime is 1312250419. The next prime is 1312250509. The reversal of 1312250503 is 3050522131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312250503 - 2¹³ = 1312242311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312250509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656125251 + 656125252.

It is an arithmetic number, because the mean of its divisors is an integer number (656125252).

Almost surely, 2^1312250503 is an apocalyptic number.

1312250503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312250503 is an equidigital number, since it uses as much as digits as its factorization.

1312250503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1312250503 is about 36224.9983160800. The cubic root of 1312250503 is about 1094.8104042652.

Adding to 1312250503 its reverse (3050522131), we get a palindrome (4362772634).

The spelling of 1312250503 in words is "one billion, three hundred twelve million, two hundred fifty thousand, five hundred three".