20023320205 has 48 divisors (see below), whose sum is σ = 30112367616. Its totient is φ = 12505559040.

The previous prime is 20023320179. The next prime is 20023320223. The reversal of 20023320205 is 50202332002.

It is not a de Polignac number, because 20023320205 - 2⁵ = 20023320173 is a prime.

It is a super-2 number, since 2×20023320205² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 281637 + ... + 345493.

It is an arithmetic number, because the mean of its divisors is an integer number (627340992).

Almost surely, 2^20023320205 is an apocalyptic number.

It is an amenable number.

20023320205 is a deficient number, since it is larger than the sum of its proper divisors (10089047411).

20023320205 is a wasteful number, since it uses less digits than its factorization.

20023320205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63934 (or 63917 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

Adding to 20023320205 its reverse (50202332002), we get a palindrome (70225652207).

The spelling of 20023320205 in words is "twenty billion, twenty-three million, three hundred twenty thousand, two hundred five".