20302043 has 4 divisors (see below), whose sum is σ = 20318928. Its totient is φ = 20285160.

The previous prime is 20302027. The next prime is 20302067. The reversal of 20302043 is 34020302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34020302 = 2 ⋅17010151.

It is a cyclic number.

It is not a de Polignac number, because 20302043 - 2⁴ = 20302027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302643) 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, 6488 + ... + 9093.

It is an arithmetic number, because the mean of its divisors is an integer number (5079732).

Almost surely, 2^20302043 is an apocalyptic number.

20302043 is a deficient number, since it is larger than the sum of its proper divisors (16885).

20302043 is a wasteful number, since it uses less digits than its factorization.

20302043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16884.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 20302043 is about 4505.7788449945. The cubic root of 20302043 is about 272.8013914140.

Adding to 20302043 its reverse (34020302), we get a palindrome (54322345).

The spelling of 20302043 in words is "twenty million, three hundred two thousand, forty-three".