203320120023 has 24 divisors (see below), whose sum is σ = 301654555488. Its totient is φ = 131869104192.

The previous prime is 203320120021. The next prime is 203320120027. The reversal of 203320120023 is 320021023302.

It is a happy number.

203320120023 is a `hidden beast` number, since 203 + 320 + 120 + 0 + 23 = 666.

It is not a de Polignac number, because 203320120023 - 2¹ = 203320120021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203320119978 and 203320120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203320120021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3693286 + ... + 3747932.

It is an arithmetic number, because the mean of its divisors is an integer number (12568939812).

Almost surely, 2^203320120023 is an apocalyptic number.

203320120023 is a deficient number, since it is larger than the sum of its proper divisors (98334435465).

203320120023 is a wasteful number, since it uses less digits than its factorization.

203320120023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65863 (or 65860 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 203320120023 its reverse (320021023302), we get a palindrome (523341143325).

The spelling of 203320120023 in words is "two hundred three billion, three hundred twenty million, one hundred twenty thousand, twenty-three".