14043020020421 has 16 divisors (see below), whose sum is σ = 16486572595584. Its totient is φ = 11708963066304.

The previous prime is 14043020020409. The next prime is 14043020020433. The reversal of 14043020020421 is 12402002034041.

It is an interprime number because it is at equal distance from previous prime (14043020020409) and next prime (14043020020433).

It is a de Polignac number, because none of the positive numbers 2^k-14043020020421 is a prime.

It is a super-2 number, since 2×14043020020421² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14043020028421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4822370 + ... + 7165283.

It is an arithmetic number, because the mean of its divisors is an integer number (1030410787224).

Almost surely, 2^{14043020020421} is an apocalyptic number.

It is an amenable number.

14043020020421 is a deficient number, since it is larger than the sum of its proper divisors (2443552575163).

14043020020421 is a wasteful number, since it uses less digits than its factorization.

14043020020421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11992220.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 14043020020421 its reverse (12402002034041), we get a palindrome (26445022054462).

The spelling of 14043020020421 in words is "fourteen trillion, forty-three billion, twenty million, twenty thousand, four hundred twenty-one".