323444202042021 has 4 divisors (see below), whose sum is σ = 431258936056032. Its totient is φ = 215629468028012.

The previous prime is 323444202042001. The next prime is 323444202042041. The reversal of 323444202042021 is 120240202444323.

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 an interprime number because it is at equal distance from previous prime (323444202042001) and next prime (323444202042041).

It is a cyclic number.

It is not a de Polignac number, because 323444202042021 - 2³⁷ = 323306763088549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323444202042001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53907367007001 + ... + 53907367007006.

It is an arithmetic number, because the mean of its divisors is an integer number (107814734014008).

Almost surely, 2^{323444202042021} is an apocalyptic number.

It is an amenable number.

323444202042021 is a deficient number, since it is larger than the sum of its proper divisors (107814734014011).

323444202042021 is a wasteful number, since it uses less digits than its factorization.

323444202042021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107814734014010.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 323444202042021 its reverse (120240202444323), we get a palindrome (443684404486344).

The spelling of 323444202042021 in words is "three hundred twenty-three trillion, four hundred forty-four billion, two hundred two million, forty-two thousand, twenty-one".