20002203 has 24 divisors (see below), whose sum is σ = 32471712. Its totient is φ = 11772288.

The previous prime is 20002201. The next prime is 20002261. The reversal of 20002203 is 30220002.

It is not a de Polignac number, because 20002203 - 2¹ = 20002201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20002201) 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 in 23 ways as a sum of consecutive naturals, for example, 1026 + ... + 6407.

It is an arithmetic number, because the mean of its divisors is an integer number (1352988).

Almost surely, 2^20002203 is an apocalyptic number.

20002203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20002203 is a deficient number, since it is larger than the sum of its proper divisors (12469509).

20002203 is a wasteful number, since it uses less digits than its factorization.

20002203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475 (or 7472 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 20002203 is about 4472.3822511051. The cubic root of 20002203 is about 271.4517277303.

Adding to 20002203 its reverse (30220002), we get a palindrome (50222205).

The spelling of 20002203 in words is "twenty million, two thousand, two hundred three".