1013321003243 has 2 divisors, whose sum is σ = 1013321003244. Its totient is φ = 1013321003242.

The previous prime is 1013321003237. The next prime is 1013321003249. The reversal of 1013321003243 is 3423001233101.

It is a balanced prime because it is at equal distance from previous prime (1013321003237) and next prime (1013321003249).

It is a cyclic number.

It is not a de Polignac number, because 1013321003243 - 2¹⁸ = 1013320741099 is a prime.

It is a super-2 number, since 2×1013321003243² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1013321003249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506660501621 + 506660501622.

It is an arithmetic number, because the mean of its divisors is an integer number (506660501622).

Almost surely, 2^{1013321003243} is an apocalyptic number.

1013321003243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013321003243 is an equidigital number, since it uses as much as digits as its factorization.

1013321003243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1013321003243 its reverse (3423001233101), we get a palindrome (4436322236344).

The spelling of 1013321003243 in words is "one trillion, thirteen billion, three hundred twenty-one million, three thousand, two hundred forty-three".