20040043014321 has 12 divisors (see below), whose sum is σ = 29369980396176. Its totient is φ = 12145480614520.

The previous prime is 20040043014311. The next prime is 20040043014331. The reversal of 20040043014321 is 12341034004002.

It is an interprime number because it is at equal distance from previous prime (20040043014311) and next prime (20040043014331).

It is not a de Polignac number, because 20040043014321 - 2⁵ = 20040043014289 is a prime.

It is a super-2 number, since 2×20040043014321² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20040043014291 and 20040043014300.

It is not an unprimeable number, because it can be changed into a prime (20040043014311) 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 11 ways as a sum of consecutive naturals, for example, 27603364671 + ... + 27603365396.

It is an arithmetic number, because the mean of its divisors is an integer number (2447498366348).

Almost surely, 2^{20040043014321} is an apocalyptic number.

It is an amenable number.

20040043014321 is a deficient number, since it is larger than the sum of its proper divisors (9329937381855).

20040043014321 is a wasteful number, since it uses less digits than its factorization.

20040043014321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55206730092 (or 55206730081 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20040043014321 its reverse (12341034004002), we get a palindrome (32381077018323).

The spelling of 20040043014321 in words is "twenty trillion, forty billion, forty-three million, fourteen thousand, three hundred twenty-one".