240321304404021 has 24 divisors (see below), whose sum is σ = 327568851749664. Its totient is φ = 156707798276640.

The previous prime is 240321304403903. The next prime is 240321304404059. The reversal of 240321304404021 is 120404403123042.

It is not a de Polignac number, because 240321304404021 - 2¹⁹ = 240321303879733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240321304404021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240321304404061) 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 23 ways as a sum of consecutive naturals, for example, 57976170 + ... + 61982891.

It is an arithmetic number, because the mean of its divisors is an integer number (13648702156236).

Almost surely, 2^{240321304404021} is an apocalyptic number.

It is an amenable number.

240321304404021 is a deficient number, since it is larger than the sum of its proper divisors (87247547345643).

240321304404021 is a wasteful number, since it uses less digits than its factorization.

240321304404021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119959329 (or 119959250 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 240321304404021 its reverse (120404403123042), we get a palindrome (360725707527063).

The spelling of 240321304404021 in words is "two hundred forty trillion, three hundred twenty-one billion, three hundred four million, four hundred four thousand, twenty-one".