201121302323 has 4 divisors (see below), whose sum is σ = 203112602448. Its totient is φ = 199130002200.

The previous prime is 201121302299. The next prime is 201121302337. The reversal of 201121302323 is 323203121102.

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 201121302323 - 2⁶ = 201121302259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201121302295 and 201121302304.

It is not an unprimeable number, because it can be changed into a prime (201121302353) 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, 995649911 + ... + 995650112.

It is an arithmetic number, because the mean of its divisors is an integer number (50778150612).

Almost surely, 2^201121302323 is an apocalyptic number.

201121302323 is a deficient number, since it is larger than the sum of its proper divisors (1991300125).

201121302323 is a wasteful number, since it uses less digits than its factorization.

201121302323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991300124.

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

Adding to 201121302323 its reverse (323203121102), we get a palindrome (524324423425).

The spelling of 201121302323 in words is "two hundred one billion, one hundred twenty-one million, three hundred two thousand, three hundred twenty-three".