20314423571 has 4 divisors (see below), whose sum is σ = 21877071552. Its totient is φ = 18751775592.

The previous prime is 20314423541. The next prime is 20314423573. The reversal of 20314423571 is 17532441302.

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 20314423571 - 2²² = 20310229267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20314423573) 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, 781323971 + ... + 781323996.

It is an arithmetic number, because the mean of its divisors is an integer number (5469267888).

Almost surely, 2^20314423571 is an apocalyptic number.

20314423571 is a deficient number, since it is larger than the sum of its proper divisors (1562647981).

20314423571 is a wasteful number, since it uses less digits than its factorization.

20314423571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562647980.

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 20314423571 its reverse (17532441302), we get a palindrome (37846864873).

The spelling of 20314423571 in words is "twenty billion, three hundred fourteen million, four hundred twenty-three thousand, five hundred seventy-one".