20223403 has 2 divisors, whose sum is σ = 20223404. Its totient is φ = 20223402.

The previous prime is 20223389. The next prime is 20223443. The reversal of 20223403 is 30432202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20223403 - 2¹³ = 20215211 is a prime.

It is not a weakly prime, because it can be changed into another prime (20223443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111701 + 10111702.

It is an arithmetic number, because the mean of its divisors is an integer number (10111702).

Almost surely, 2^20223403 is an apocalyptic number.

20223403 is a deficient number, since it is larger than the sum of its proper divisors (1).

20223403 is an equidigital number, since it uses as much as digits as its factorization.

20223403 is an odious number, because the sum of its binary digits is odd.

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

The square root of 20223403 is about 4497.0438067691. The cubic root of 20223403 is about 272.4487034156.

Adding to 20223403 its reverse (30432202), we get a palindrome (50655605).

The spelling of 20223403 in words is "twenty million, two hundred twenty-three thousand, four hundred three".