201042323321 has 4 divisors (see below), whose sum is σ = 229762655232. Its totient is φ = 172321991412.

The previous prime is 201042323257. The next prime is 201042323371. The reversal of 201042323321 is 123323240102.

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 201042323321 - 2⁶ = 201042323257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201042323371) 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 3 ways as a sum of consecutive naturals, for example, 14360165945 + ... + 14360165958.

It is an arithmetic number, because the mean of its divisors is an integer number (57440663808).

Almost surely, 2^201042323321 is an apocalyptic number.

It is an amenable number.

201042323321 is a deficient number, since it is larger than the sum of its proper divisors (28720331911).

201042323321 is an equidigital number, since it uses as much as digits as its factorization.

201042323321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28720331910.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 201042323321 its reverse (123323240102), we get a palindrome (324365563423).

The spelling of 201042323321 in words is "two hundred one billion, forty-two million, three hundred twenty-three thousand, three hundred twenty-one".