20023300062543 has 32 divisors (see below), whose sum is σ = 26985937305600. Its totient is φ = 13205051906400.

The previous prime is 20023300062541. The next prime is 20023300062559. The reversal of 20023300062543 is 34526000332002.

It is not a de Polignac number, because 20023300062543 - 2¹ = 20023300062541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20023300062543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023300062541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1234245730 + ... + 1234261952.

It is an arithmetic number, because the mean of its divisors is an integer number (843310540800).

Almost surely, 2^{20023300062543} is an apocalyptic number.

20023300062543 is a deficient number, since it is larger than the sum of its proper divisors (6962637243057).

20023300062543 is a wasteful number, since it uses less digits than its factorization.

20023300062543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20379.

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 20023300062543 its reverse (34526000332002), we get a palindrome (54549300394545).

The spelling of 20023300062543 in words is "twenty trillion, twenty-three billion, three hundred million, sixty-two thousand, five hundred forty-three".