20242303 has 2 divisors, whose sum is σ = 20242304. Its totient is φ = 20242302.

The previous prime is 20242297. The next prime is 20242307. The reversal of 20242303 is 30324202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20242303 - 2²¹ = 18145151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20242307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121151 + 10121152.

It is an arithmetic number, because the mean of its divisors is an integer number (10121152).

Almost surely, 2^20242303 is an apocalyptic number.

20242303 is a deficient number, since it is larger than the sum of its proper divisors (1).

20242303 is an equidigital number, since it uses as much as digits as its factorization.

20242303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 20242303 is about 4499.1446964951. The cubic root of 20242303 is about 272.5335502837.

Adding to 20242303 its reverse (30324202), we get a palindrome (50566505).

The spelling of 20242303 in words is "twenty million, two hundred forty-two thousand, three hundred three".