20003124343 has 2 divisors, whose sum is σ = 20003124344. Its totient is φ = 20003124342.

The previous prime is 20003124277. The next prime is 20003124353. The reversal of 20003124343 is 34342130002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20003124343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20003124353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001562171 + 10001562172.

It is an arithmetic number, because the mean of its divisors is an integer number (10001562172).

Almost surely, 2^20003124343 is an apocalyptic number.

20003124343 is a deficient number, since it is larger than the sum of its proper divisors (1).

20003124343 is an equidigital number, since it uses as much as digits as its factorization.

20003124343 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 20003124343 its reverse (34342130002), we get a palindrome (54345254345).

The spelling of 20003124343 in words is "twenty billion, three million, one hundred twenty-four thousand, three hundred forty-three".