123020320203 has 48 divisors (see below), whose sum is σ = 205954725600. Its totient is φ = 70041162240.

The previous prime is 123020320193. The next prime is 123020320301. The reversal of 123020320203 is 302023020321.

It is a happy number.

123020320203 is a `hidden beast` number, since 123 + 0 + 20 + 320 + 203 = 666.

It is not a de Polignac number, because 123020320203 - 2⁹ = 123020319691 is a prime.

It is a super-2 number, since 2×123020320203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123020320303) 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 in 47 ways as a sum of consecutive naturals, for example, 472818 + ... + 685271.

It is an arithmetic number, because the mean of its divisors is an integer number (4290723450).

Almost surely, 2^123020320203 is an apocalyptic number.

123020320203 is a deficient number, since it is larger than the sum of its proper divisors (82934405397).

123020320203 is a wasteful number, since it uses less digits than its factorization.

123020320203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158172 (or 1158169 counting only the distinct ones).

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

Adding to 123020320203 its reverse (302023020321), we get a palindrome (425043340524).

The spelling of 123020320203 in words is "one hundred twenty-three billion, twenty million, three hundred twenty thousand, two hundred three".