40320311330421 has 12 divisors (see below), whose sum is σ = 59594878762848. Its totient is φ = 26255086447464.

The previous prime is 40320311330401. The next prime is 40320311330471. The reversal of 40320311330421 is 12403311302304.

It is a happy number.

40320311330421 is a `hidden beast` number, since 4 + 0 + 3 + 20 + 311 + 3 + 304 + 21 = 666.

It is not a de Polignac number, because 40320311330421 - 2¹³ = 40320311322229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40320311330401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52093425105 + ... + 52093425878.

It is an arithmetic number, because the mean of its divisors is an integer number (4966239896904).

Almost surely, 2^{40320311330421} is an apocalyptic number.

It is an amenable number.

40320311330421 is a deficient number, since it is larger than the sum of its proper divisors (19274567432427).

40320311330421 is a wasteful number, since it uses less digits than its factorization.

40320311330421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104186851032 (or 104186851029 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 40320311330421 its reverse (12403311302304), we get a palindrome (52723622632725).

The spelling of 40320311330421 in words is "forty trillion, three hundred twenty billion, three hundred eleven million, three hundred thirty thousand, four hundred twenty-one".