201012320021321 has 4 divisors (see below), whose sum is σ = 201421713748944. Its totient is φ = 200602926293700.

The previous prime is 201012320021287. The next prime is 201012320021329. The reversal of 201012320021321 is 123120023210102.

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 a de Polignac number, because none of the positive numbers 2^k-201012320021321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201012320021293 and 201012320021302.

It is not an unprimeable number, because it can be changed into a prime (201012320021329) 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, 204696863075 + ... + 204696864056.

It is an arithmetic number, because the mean of its divisors is an integer number (50355428437236).

Almost surely, 2^{201012320021321} is an apocalyptic number.

It is an amenable number.

201012320021321 is a deficient number, since it is larger than the sum of its proper divisors (409393727623).

201012320021321 is an equidigital number, since it uses as much as digits as its factorization.

201012320021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409393727622.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 201012320021321 its reverse (123120023210102), we get a palindrome (324132343231423).

The spelling of 201012320021321 in words is "two hundred one trillion, twelve billion, three hundred twenty million, twenty-one thousand, three hundred twenty-one".