201023110321321 has 8 divisors (see below), whose sum is σ = 201251700475904. Its totient is φ = 200794522274640.

The previous prime is 201023110321237. The next prime is 201023110321379. The reversal of 201023110321321 is 123123011320102.

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 201023110321321 - 2¹⁹ = 201023109797033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201023110321292 and 201023110321301.

It is not an unprimeable number, because it can be changed into a prime (201023110321421) 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 7 ways as a sum of consecutive naturals, for example, 267943495 + ... + 268692691.

It is an arithmetic number, because the mean of its divisors is an integer number (25156462559488).

Almost surely, 2^{201023110321321} is an apocalyptic number.

It is an amenable number.

201023110321321 is a deficient number, since it is larger than the sum of its proper divisors (228590154583).

201023110321321 is an equidigital number, since it uses as much as digits as its factorization.

201023110321321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053951.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 201023110321321 its reverse (123123011320102), we get a palindrome (324146121641423).

The spelling of 201023110321321 in words is "two hundred one trillion, twenty-three billion, one hundred ten million, three hundred twenty-one thousand, three hundred twenty-one".