20214341021 has 4 divisors (see below), whose sum is σ = 23102104032. Its totient is φ = 17326578012.

The previous prime is 20214341009. The next prime is 20214341107. The reversal of 20214341021 is 12014341202.

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 20214341021 - 2²² = 20210146717 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20214340984 and 20214341002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214346021) 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, 1443881495 + ... + 1443881508.

It is an arithmetic number, because the mean of its divisors is an integer number (5775526008).

Almost surely, 2^20214341021 is an apocalyptic number.

It is an amenable number.

20214341021 is a deficient number, since it is larger than the sum of its proper divisors (2887763011).

20214341021 is an equidigital number, since it uses as much as digits as its factorization.

20214341021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887763010.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20214341021 its reverse (12014341202), we get a palindrome (32228682223).

The spelling of 20214341021 in words is "twenty billion, two hundred fourteen million, three hundred forty-one thousand, twenty-one".