201233023121 has 8 divisors (see below), whose sum is σ = 221752312320. Its totient is φ = 181433709072.

The previous prime is 201233023109. The next prime is 201233023141. The reversal of 201233023121 is 121320332102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201233023121 - 2¹⁸ = 201232760977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201233023093 and 201233023102.

It is not an unprimeable number, because it can be changed into a prime (201233023141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179993201 + ... + 179994318.

It is an arithmetic number, because the mean of its divisors is an integer number (27719039040).

Almost surely, 2^201233023121 is an apocalyptic number.

It is an amenable number.

201233023121 is a deficient number, since it is larger than the sum of its proper divisors (20519289199).

201233023121 is a wasteful number, since it uses less digits than its factorization.

201233023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359987575.

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

Adding to 201233023121 its reverse (121320332102), we get a palindrome (322553355223).

The spelling of 201233023121 in words is "two hundred one billion, two hundred thirty-three million, twenty-three thousand, one hundred twenty-one".