20043351343 has 2 divisors, whose sum is σ = 20043351344. Its totient is φ = 20043351342.

The previous prime is 20043351259. The next prime is 20043351359. The reversal of 20043351343 is 34315334002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20043351343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20043357343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021675671 + 10021675672.

It is an arithmetic number, because the mean of its divisors is an integer number (10021675672).

Almost surely, 2^20043351343 is an apocalyptic number.

20043351343 is a deficient number, since it is larger than the sum of its proper divisors (1).

20043351343 is an equidigital number, since it uses as much as digits as its factorization.

20043351343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 20043351343 its reverse (34315334002), we get a palindrome (54358685345).

The spelling of 20043351343 in words is "twenty billion, forty-three million, three hundred fifty-one thousand, three hundred forty-three".