202311323203 has 4 divisors (see below), whose sum is σ = 220703261688. Its totient is φ = 183919384720.

The previous prime is 202311323171. The next prime is 202311323231. The reversal of 202311323203 is 302323113202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202311323203 - 2⁵ = 202311323171 is a prime.

It is a super-2 number, since 2×202311323203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202311323243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9195969226 + ... + 9195969247.

It is an arithmetic number, because the mean of its divisors is an integer number (55175815422).

Almost surely, 2^202311323203 is an apocalyptic number.

202311323203 is a deficient number, since it is larger than the sum of its proper divisors (18391938485).

202311323203 is a wasteful number, since it uses less digits than its factorization.

202311323203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18391938484.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 202311323203 its reverse (302323113202), we get a palindrome (504634436405).

The spelling of 202311323203 in words is "two hundred two billion, three hundred eleven million, three hundred twenty-three thousand, two hundred three".