20114243421 has 4 divisors (see below), whose sum is σ = 26818991232. Its totient is φ = 13409495612.

The previous prime is 20114243407. The next prime is 20114243449. The reversal of 20114243421 is 12434241102.

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 a cyclic number.

It is not a de Polignac number, because 20114243421 - 2⁵ = 20114243389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20114243391 and 20114243400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20114243491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3352373901 + ... + 3352373906.

It is an arithmetic number, because the mean of its divisors is an integer number (6704747808).

Almost surely, 2^20114243421 is an apocalyptic number.

It is an amenable number.

20114243421 is a deficient number, since it is larger than the sum of its proper divisors (6704747811).

20114243421 is an equidigital number, since it uses as much as digits as its factorization.

20114243421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6704747810.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 20114243421 its reverse (12434241102), we get a palindrome (32548484523).

The spelling of 20114243421 in words is "twenty billion, one hundred fourteen million, two hundred forty-three thousand, four hundred twenty-one".