1243433321443 has 2 divisors, whose sum is σ = 1243433321444. Its totient is φ = 1243433321442.

The previous prime is 1243433321423. The next prime is 1243433321453. The reversal of 1243433321443 is 3441233343421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1243433321443 - 2⁵ = 1243433321411 is a prime.

It is a super-2 number, since 2×1243433321443² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1243433321423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621716660721 + 621716660722.

It is an arithmetic number, because the mean of its divisors is an integer number (621716660722).

Almost surely, 2^{1243433321443} is an apocalyptic number.

1243433321443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243433321443 is an equidigital number, since it uses as much as digits as its factorization.

1243433321443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 37.

Adding to 1243433321443 its reverse (3441233343421), we get a palindrome (4684666664864).

The spelling of 1243433321443 in words is "one trillion, two hundred forty-three billion, four hundred thirty-three million, three hundred twenty-one thousand, four hundred forty-three".