203220310323 has 16 divisors (see below), whose sum is σ = 271456732800. Its totient is φ = 135232144320.

The previous prime is 203220310243. The next prime is 203220310327. The reversal of 203220310323 is 323013022302.

It is not a de Polignac number, because 203220310323 - 2⁹ = 203220309811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203220310323.

It is not an unprimeable number, because it can be changed into a prime (203220310327) 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 15 ways as a sum of consecutive naturals, for example, 11744308 + ... + 11761598.

It is an arithmetic number, because the mean of its divisors is an integer number (16966045800).

Almost surely, 2^203220310323 is an apocalyptic number.

203220310323 is a deficient number, since it is larger than the sum of its proper divisors (68236422477).

203220310323 is a wasteful number, since it uses less digits than its factorization.

203220310323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24242.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 203220310323 its reverse (323013022302), we get a palindrome (526233332625).

The spelling of 203220310323 in words is "two hundred three billion, two hundred twenty million, three hundred ten thousand, three hundred twenty-three".