20023140043 has 2 divisors, whose sum is σ = 20023140044. Its totient is φ = 20023140042.

The previous prime is 20023140041. The next prime is 20023140083. The reversal of 20023140043 is 34004132002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20023140043 - 2¹ = 20023140041 is a prime.

It is a super-2 number, since 2×20023140043² (a number of 21 digits) contains 22 as substring.

Together with 20023140041, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20023140043.

It is not a weakly prime, because it can be changed into another prime (20023140041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011570021 + 10011570022.

It is an arithmetic number, because the mean of its divisors is an integer number (10011570022).

Almost surely, 2^20023140043 is an apocalyptic number.

20023140043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023140043 is an equidigital number, since it uses as much as digits as its factorization.

20023140043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20023140043 its reverse (34004132002), we get a palindrome (54027272045).

The spelling of 20023140043 in words is "twenty billion, twenty-three million, one hundred forty thousand, forty-three".