203220321023 has 2 divisors, whose sum is σ = 203220321024. Its totient is φ = 203220321022.

The previous prime is 203220321019. The next prime is 203220321041. The reversal of 203220321023 is 320123022302.

203220321023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203220321023 - 2² = 203220321019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203220320986 and 203220321004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203220321523) 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, 101610160511 + 101610160512.

It is an arithmetic number, because the mean of its divisors is an integer number (101610160512).

Almost surely, 2^203220321023 is an apocalyptic number.

203220321023 is a deficient number, since it is larger than the sum of its proper divisors (1).

203220321023 is an equidigital number, since it uses as much as digits as its factorization.

203220321023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 203220321023 its reverse (320123022302), we get a palindrome (523343343325).

The spelling of 203220321023 in words is "two hundred three billion, two hundred twenty million, three hundred twenty-one thousand, twenty-three".