20322003 has 16 divisors (see below), whose sum is σ = 29469440. Its totient is φ = 12381984.

The previous prime is 20321981. The next prime is 20322017. The reversal of 20322003 is 30022302.

It is a de Polignac number, because none of the positive numbers 2^k-20322003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20322003.

It is not an unprimeable number, because it can be changed into a prime (20322053) 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 15 ways as a sum of consecutive naturals, for example, 1488 + ... + 6546.

It is an arithmetic number, because the mean of its divisors is an integer number (1841840).

Almost surely, 2^20322003 is an apocalyptic number.

20322003 is a deficient number, since it is larger than the sum of its proper divisors (9147437).

20322003 is a wasteful number, since it uses less digits than its factorization.

20322003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5178.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 20322003 is about 4507.9932342451. The cubic root of 20322003 is about 272.8907639020.

Adding to 20322003 its reverse (30022302), we get a palindrome (50344305).

The spelling of 20322003 in words is "twenty million, three hundred twenty-two thousand, three".