1313253443 has 2 divisors, whose sum is σ = 1313253444. Its totient is φ = 1313253442.

The previous prime is 1313253433. The next prime is 1313253449. The reversal of 1313253443 is 3443523131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1313253443 - 2⁸ = 1313253187 is a prime.

It is not a weakly prime, because it can be changed into another prime (1313253449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656626721 + 656626722.

It is an arithmetic number, because the mean of its divisors is an integer number (656626722).

Almost surely, 2^1313253443 is an apocalyptic number.

1313253443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313253443 is an equidigital number, since it uses as much as digits as its factorization.

1313253443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 29.

The square root of 1313253443 is about 36238.8388748867. The cubic root of 1313253443 is about 1095.0892508029.

Adding to 1313253443 its reverse (3443523131), we get a palindrome (4756776574).

The spelling of 1313253443 in words is "one billion, three hundred thirteen million, two hundred fifty-three thousand, four hundred forty-three".