20314440021 has 8 divisors (see below), whose sum is σ = 27099450720. Its totient is φ = 13536194672.

The previous prime is 20314440011. The next prime is 20314440031. The reversal of 20314440021 is 12004441302.

It is an interprime number because it is at equal distance from previous prime (20314440011) and next prime (20314440031).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20314440021 - 2⁵ = 20314439989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20314440021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20314440011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684326 + ... + 1696343.

It is an arithmetic number, because the mean of its divisors is an integer number (3387431340).

Almost surely, 2^20314440021 is an apocalyptic number.

It is an amenable number.

20314440021 is a deficient number, since it is larger than the sum of its proper divisors (6785010699).

20314440021 is a wasteful number, since it uses less digits than its factorization.

20314440021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3382675.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20314440021 its reverse (12004441302), we get a palindrome (32318881323).

The spelling of 20314440021 in words is "twenty billion, three hundred fourteen million, four hundred forty thousand, twenty-one".