1313043243403 has 2 divisors, whose sum is σ = 1313043243404. Its totient is φ = 1313043243402.

The previous prime is 1313043243359. The next prime is 1313043243419. The reversal of 1313043243403 is 3043423403131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1313043243403 - 2²⁹ = 1312506372491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1313043243703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656521621701 + 656521621702.

It is an arithmetic number, because the mean of its divisors is an integer number (656521621702).

Almost surely, 2^{1313043243403} is an apocalyptic number.

1313043243403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313043243403 is an equidigital number, since it uses as much as digits as its factorization.

1313043243403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 1313043243403 its reverse (3043423403131), we get a palindrome (4356466646534).

The spelling of 1313043243403 in words is "one trillion, three hundred thirteen billion, forty-three million, two hundred forty-three thousand, four hundred three".