202021232323 has 4 divisors (see below), whose sum is σ = 202046037480. Its totient is φ = 201996427168.

The previous prime is 202021232243. The next prime is 202021232383. The reversal of 202021232323 is 323232120202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202021232323 - 2¹⁷ = 202021101251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202021232294 and 202021232303.

It is not an unprimeable number, because it can be changed into a prime (202021232383) 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, 12390358 + ... + 12406651.

It is an arithmetic number, because the mean of its divisors is an integer number (50511509370).

Almost surely, 2^202021232323 is an apocalyptic number.

202021232323 is a deficient number, since it is larger than the sum of its proper divisors (24805157).

202021232323 is an equidigital number, since it uses as much as digits as its factorization.

202021232323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24805156.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 202021232323 its reverse (323232120202), we get a palindrome (525253352525).

The spelling of 202021232323 in words is "two hundred two billion, twenty-one million, two hundred thirty-two thousand, three hundred twenty-three".