123203220101 has 16 divisors (see below), whose sum is σ = 134159760000. Its totient is φ = 112464752448.

The previous prime is 123203220073. The next prime is 123203220139. The reversal of 123203220101 is 101022302321.

It is a cyclic number.

It is not a de Polignac number, because 123203220101 - 2⁶ = 123203220037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123203220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123203420101) 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, 299600 + ... + 579798.

It is an arithmetic number, because the mean of its divisors is an integer number (8384985000).

Almost surely, 2^123203220101 is an apocalyptic number.

It is an amenable number.

123203220101 is a deficient number, since it is larger than the sum of its proper divisors (10956539899).

123203220101 is a wasteful number, since it uses less digits than its factorization.

123203220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280588.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 123203220101 its reverse (101022302321), we get a palindrome (224225522422).

The spelling of 123203220101 in words is "one hundred twenty-three billion, two hundred three million, two hundred twenty thousand, one hundred one".