201000123203 has 24 divisors (see below), whose sum is σ = 236891471040. Its totient is φ = 169801632000.

The previous prime is 201000123197. The next prime is 201000123227. The reversal of 201000123203 is 302321000102.

It is a happy number.

It is not a de Polignac number, because 201000123203 - 2¹⁴ = 201000106819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201000123263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 455948 + ... + 780953.

It is an arithmetic number, because the mean of its divisors is an integer number (9870477960).

Almost surely, 2^201000123203 is an apocalyptic number.

201000123203 is a deficient number, since it is larger than the sum of its proper divisors (35891347837).

201000123203 is a wasteful number, since it uses less digits than its factorization.

201000123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237019 (or 1237008 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 201000123203 its reverse (302321000102), we get a palindrome (503321123305).

The spelling of 201000123203 in words is "two hundred one billion, one hundred twenty-three thousand, two hundred three".