202100201321 has 4 divisors (see below), whose sum is σ = 202814336592. Its totient is φ = 201386066052.

The previous prime is 202100201309. The next prime is 202100201377. The reversal of 202100201321 is 123102001202.

It is a happy number.

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 202100201321 - 2¹⁰ = 202100200297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202100201296 and 202100201305.

It is not an unprimeable number, because it can be changed into a prime (202100201221) 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, 357067211 + ... + 357067776.

It is an arithmetic number, because the mean of its divisors is an integer number (50703584148).

Almost surely, 2^202100201321 is an apocalyptic number.

It is an amenable number.

202100201321 is a deficient number, since it is larger than the sum of its proper divisors (714135271).

202100201321 is an equidigital number, since it uses as much as digits as its factorization.

202100201321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714135270.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 202100201321 its reverse (123102001202), we get a palindrome (325202202523).

The spelling of 202100201321 in words is "two hundred two billion, one hundred million, two hundred one thousand, three hundred twenty-one".