1243214043343 has 2 divisors, whose sum is σ = 1243214043344. Its totient is φ = 1243214043342.

The previous prime is 1243214043319. The next prime is 1243214043373. The reversal of 1243214043343 is 3433404123421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1243214043343 - 2³⁷ = 1105775089871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1243214043299 and 1243214043308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1243214043373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621607021671 + 621607021672.

It is an arithmetic number, because the mean of its divisors is an integer number (621607021672).

Almost surely, 2^{1243214043343} is an apocalyptic number.

1243214043343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243214043343 is an equidigital number, since it uses as much as digits as its factorization.

1243214043343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 1243214043343 its reverse (3433404123421), we get a palindrome (4676618166764).

The spelling of 1243214043343 in words is "one trillion, two hundred forty-three billion, two hundred fourteen million, forty-three thousand, three hundred forty-three".