20201424243 has 64 divisors (see below), whose sum is σ = 37142418432. Its totient is φ = 9425134080.

The previous prime is 20201424233. The next prime is 20201424253. The reversal of 20201424243 is 34242410202.

It is an interprime number because it is at equal distance from previous prime (20201424233) and next prime (20201424253).

It is not a de Polignac number, because 20201424243 - 2⁵ = 20201424211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20201424233) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20205 + ... + 202017.

It is an arithmetic number, because the mean of its divisors is an integer number (580350288).

Almost surely, 2^20201424243 is an apocalyptic number.

20201424243 is a deficient number, since it is larger than the sum of its proper divisors (16940994189).

20201424243 is a wasteful number, since it uses less digits than its factorization.

20201424243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181884.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20201424243 its reverse (34242410202), we get a palindrome (54443834445).

It can be divided in two parts, 20201 and 424243, that added together give a palindrome (444444).

The spelling of 20201424243 in words is "twenty billion, two hundred one million, four hundred twenty-four thousand, two hundred forty-three".