20243043 has 6 divisors (see below), whose sum is σ = 29239964. Its totient is φ = 13495356.

The previous prime is 20243029. The next prime is 20243063. The reversal of 20243043 is 34034202.

It is not a de Polignac number, because 20243043 - 2⁵ = 20243011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20243063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1124605 + ... + 1124622.

Almost surely, 2^20243043 is an apocalyptic number.

20243043 is a deficient number, since it is larger than the sum of its proper divisors (8996921).

20243043 is a wasteful number, since it uses less digits than its factorization.

20243043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249233 (or 2249230 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 20243043 is about 4499.2269335965. The cubic root of 20243043 is about 272.5368712558.

Adding to 20243043 its reverse (34034202), we get a palindrome (54277245).

The spelling of 20243043 in words is "twenty million, two hundred forty-three thousand, forty-three".