1313215103 has 2 divisors, whose sum is σ = 1313215104. Its totient is φ = 1313215102.

The previous prime is 1313215093. The next prime is 1313215121. The reversal of 1313215103 is 3015123131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1313215103 - 2¹⁶ = 1313149567 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313265103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656607551 + 656607552.

It is an arithmetic number, because the mean of its divisors is an integer number (656607552).

Almost surely, 2^1313215103 is an apocalyptic number.

1313215103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313215103 is an equidigital number, since it uses as much as digits as its factorization.

1313215103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1313215103 is about 36238.3098805670. The cubic root of 1313215103 is about 1095.0785937764.

Adding to 1313215103 its reverse (3015123131), we get a palindrome (4328338234).

The spelling of 1313215103 in words is "one billion, three hundred thirteen million, two hundred fifteen thousand, one hundred three".