20242424511143 has 4 divisors (see below), whose sum is σ = 20390179434720. Its totient is φ = 20094669587568.

The previous prime is 20242424511091. The next prime is 20242424511181. The reversal of 20242424511143 is 34111542424202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20242424511143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20242424511343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73877461583 + ... + 73877461856.

It is an arithmetic number, because the mean of its divisors is an integer number (5097544858680).

Almost surely, 2^{20242424511143} is an apocalyptic number.

20242424511143 is a deficient number, since it is larger than the sum of its proper divisors (147754923577).

20242424511143 is a wasteful number, since it uses less digits than its factorization.

20242424511143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147754923576.

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 20242424511143 its reverse (34111542424202), we get a palindrome (54353966935345).

The spelling of 20242424511143 in words is "twenty trillion, two hundred forty-two billion, four hundred twenty-four million, five hundred eleven thousand, one hundred forty-three".