20323769227 has 4 divisors (see below), whose sum is σ = 20370924576. Its totient is φ = 20276613880.

The previous prime is 20323769189. The next prime is 20323769251. The reversal of 20323769227 is 72296732302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20323769227 - 2¹⁹ = 20323244939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20323769927) 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, 23577028 + ... + 23577889.

It is an arithmetic number, because the mean of its divisors is an integer number (5092731144).

Almost surely, 2^20323769227 is an apocalyptic number.

20323769227 is a deficient number, since it is larger than the sum of its proper divisors (47155349).

20323769227 is an equidigital number, since it uses as much as digits as its factorization.

20323769227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47155348.

The product of its (nonzero) digits is 381024, while the sum is 43.

The spelling of 20323769227 in words is "twenty billion, three hundred twenty-three million, seven hundred sixty-nine thousand, two hundred twenty-seven".