20042130343 has 2 divisors, whose sum is σ = 20042130344. Its totient is φ = 20042130342.

The previous prime is 20042130341. The next prime is 20042130421. The reversal of 20042130343 is 34303124002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20042130343 - 2¹ = 20042130341 is a prime.

Together with 20042130341, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20042130341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021065171 + 10021065172.

It is an arithmetic number, because the mean of its divisors is an integer number (10021065172).

Almost surely, 2^20042130343 is an apocalyptic number.

20042130343 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042130343 is an equidigital number, since it uses as much as digits as its factorization.

20042130343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20042130343 its reverse (34303124002), we get a palindrome (54345254345).

The spelling of 20042130343 in words is "twenty billion, forty-two million, one hundred thirty thousand, three hundred forty-three".