20323321003 has 2 divisors, whose sum is σ = 20323321004. Its totient is φ = 20323321002.

The previous prime is 20323321001. The next prime is 20323321061. The reversal of 20323321003 is 30012332302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20323321003 - 2¹ = 20323321001 is a prime.

Together with 20323321001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20323321001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161660501 + 10161660502.

It is an arithmetic number, because the mean of its divisors is an integer number (10161660502).

Almost surely, 2^20323321003 is an apocalyptic number.

20323321003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323321003 is an equidigital number, since it uses as much as digits as its factorization.

20323321003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20323321003 its reverse (30012332302), we get a palindrome (50335653305).

The spelling of 20323321003 in words is "twenty billion, three hundred twenty-three million, three hundred twenty-one thousand, three".