1243313444311 has 2 divisors, whose sum is σ = 1243313444312. Its totient is φ = 1243313444310.

The previous prime is 1243313444249. The next prime is 1243313444323. The reversal of 1243313444311 is 1134443133421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1243313444311 - 2²⁹ = 1242776573399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1243313444381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621656722155 + 621656722156.

It is an arithmetic number, because the mean of its divisors is an integer number (621656722156).

Almost surely, 2^{1243313444311} is an apocalyptic number.

1243313444311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243313444311 is an equidigital number, since it uses as much as digits as its factorization.

1243313444311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 34.

Adding to 1243313444311 its reverse (1134443133421), we get a palindrome (2377756577732).

The spelling of 1243313444311 in words is "one trillion, two hundred forty-three billion, three hundred thirteen million, four hundred forty-four thousand, three hundred eleven".