202113202321 has 4 divisors (see below), whose sum is σ = 202117586944. Its totient is φ = 202108817700.

The previous prime is 202113202271. The next prime is 202113202327. The reversal of 202113202321 is 123202311202.

202113202321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-202113202321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202113202327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2122425 + ... + 2215606.

It is an arithmetic number, because the mean of its divisors is an integer number (50529396736).

Almost surely, 2^202113202321 is an apocalyptic number.

It is an amenable number.

202113202321 is a deficient number, since it is larger than the sum of its proper divisors (4384623).

202113202321 is an equidigital number, since it uses as much as digits as its factorization.

202113202321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384622.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 202113202321 its reverse (123202311202), we get a palindrome (325315513523).

The spelling of 202113202321 in words is "two hundred two billion, one hundred thirteen million, two hundred two thousand, three hundred twenty-one".