201123303321101 has 4 divisors (see below), whose sum is σ = 229855203795552. Its totient is φ = 172391402846652.

The previous prime is 201123303321091. The next prime is 201123303321103. The reversal of 201123303321101 is 101123303321102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201123303321101 - 2²² = 201123299126797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201123303321103) 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, 14365950237215 + ... + 14365950237228.

It is an arithmetic number, because the mean of its divisors is an integer number (57463800948888).

Almost surely, 2^{201123303321101} is an apocalyptic number.

It is an amenable number.

201123303321101 is a deficient number, since it is larger than the sum of its proper divisors (28731900474451).

201123303321101 is an equidigital number, since it uses as much as digits as its factorization.

201123303321101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28731900474450.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 201123303321101 its reverse (101123303321102), we get a palindrome (302246606642203).

Subtracting from 201123303321101 its reverse (101123303321102), we obtain a palindrome (99999999999999).

The spelling of 201123303321101 in words is "two hundred one trillion, one hundred twenty-three billion, three hundred three million, three hundred twenty-one thousand, one hundred one".