1310003209943 has 2 divisors, whose sum is σ = 1310003209944. Its totient is φ = 1310003209942.

The previous prime is 1310003209913. The next prime is 1310003209987. The reversal of 1310003209943 is 3499023000131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1310003209943 - 2⁸ = 1310003209687 is a prime.

It is a super-2 number, since 2×1310003209943² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310003209913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655001604971 + 655001604972.

It is an arithmetic number, because the mean of its divisors is an integer number (655001604972).

Almost surely, 2^{1310003209943} is an apocalyptic number.

1310003209943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310003209943 is an equidigital number, since it uses as much as digits as its factorization.

1310003209943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The spelling of 1310003209943 in words is "one trillion, three hundred ten billion, three million, two hundred nine thousand, nine hundred forty-three".