202321123103 has 16 divisors (see below), whose sum is σ = 225969778080. Its totient is φ = 179592460800.

The previous prime is 202321123063. The next prime is 202321123111. The reversal of 202321123103 is 301321123202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202321123103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202321123003) 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, 1008518 + ... + 1192371.

It is an arithmetic number, because the mean of its divisors is an integer number (14123111130).

Almost surely, 2^202321123103 is an apocalyptic number.

202321123103 is a deficient number, since it is larger than the sum of its proper divisors (23648654977).

202321123103 is a wasteful number, since it uses less digits than its factorization.

202321123103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201098.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 202321123103 its reverse (301321123202), we get a palindrome (503642246305).

Subtracting 202321123103 from its reverse (301321123202), we obtain a palindrome (99000000099).

The spelling of 202321123103 in words is "two hundred two billion, three hundred twenty-one million, one hundred twenty-three thousand, one hundred three".