1243433321343 has 6 divisors (see below), whose sum is σ = 1796070353064. Its totient is φ = 828955547556.

The previous prime is 1243433321287. The next prime is 1243433321359. The reversal of 1243433321343 is 3431233343421.

1243433321343 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 433 + 3 + 213 + 4 + 3 = 666.

It is not a de Polignac number, because 1243433321343 - 2¹³ = 1243433313151 is a prime.

It is a super-2 number, since 2×1243433321343² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1243433321298 and 1243433321307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243433321443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69079628955 + ... + 69079628972.

It is an arithmetic number, because the mean of its divisors is an integer number (299345058844).

Almost surely, 2^{1243433321343} is an apocalyptic number.

1243433321343 is a deficient number, since it is larger than the sum of its proper divisors (552637031721).

1243433321343 is a wasteful number, since it uses less digits than its factorization.

1243433321343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138159257933 (or 138159257930 counting only the distinct ones).

The product of its digits is 186624, while the sum is 36.

Adding to 1243433321343 its reverse (3431233343421), we get a palindrome (4674666664764).

The spelling of 1243433321343 in words is "one trillion, two hundred forty-three billion, four hundred thirty-three million, three hundred twenty-one thousand, three hundred forty-three".