202112321 has 2 divisors, whose sum is σ = 202112322. Its totient is φ = 202112320.

The previous prime is 202112263. The next prime is 202112381. The reversal of 202112321 is 123211202.

It is a happy number.

202112321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194881600 + 7230721 = 13960^2 + 2689^2 .

It is a cyclic number.

It is not a de Polignac number, because 202112321 - 2¹⁴ = 202095937 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 202112296 and 202112305.

It is not a weakly prime, because it can be changed into another prime (202112381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101056160 + 101056161.

It is an arithmetic number, because the mean of its divisors is an integer number (101056161).

Almost surely, 2^202112321 is an apocalyptic number.

It is an amenable number.

202112321 is a deficient number, since it is larger than the sum of its proper divisors (1).

202112321 is an equidigital number, since it uses as much as digits as its factorization.

202112321 is an evil number, because the sum of its binary digits is even.

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

The square root of 202112321 is about 14216.6212934016. The cubic root of 202112321 is about 586.8551630793.

Adding to 202112321 its reverse (123211202), we get a palindrome (325323523).

The spelling of 202112321 in words is "two hundred two million, one hundred twelve thousand, three hundred twenty-one".