20204120223 has 80 divisors (see below), whose sum is σ = 35414396160. Its totient is φ = 11238683904.

The previous prime is 20204120219. The next prime is 20204120227. The reversal of 20204120223 is 32202140202.

It is an interprime number because it is at equal distance from previous prime (20204120219) and next prime (20204120227).

It is not a de Polignac number, because 20204120223 - 2² = 20204120219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20204120196 and 20204120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20204120227) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8215168 + ... + 8217626.

It is an arithmetic number, because the mean of its divisors is an integer number (442679952).

Almost surely, 2^20204120223 is an apocalyptic number.

20204120223 is a deficient number, since it is larger than the sum of its proper divisors (15210275937).

20204120223 is a wasteful number, since it uses less digits than its factorization.

20204120223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858 (or 2849 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20204120223 its reverse (32202140202), we get a palindrome (52406260425).

The spelling of 20204120223 in words is "twenty billion, two hundred four million, one hundred twenty thousand, two hundred twenty-three".