20423412204 has 24 divisors (see below), whose sum is σ = 51320369520. Its totient is φ = 6284126784.

The previous prime is 20423412187. The next prime is 20423412221. The reversal of 20423412204 is 40221432402.

It is an interprime number because it is at equal distance from previous prime (20423412187) and next prime (20423412221).

It is a super-2 number, since 2×20423412204² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65459499 + ... + 65459810.

It is an arithmetic number, because the mean of its divisors is an integer number (2138348730).

Almost surely, 2^20423412204 is an apocalyptic number.

It is an amenable number.

20423412204 is an abundant number, since it is smaller than the sum of its proper divisors (30896957316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20423412204 is a wasteful number, since it uses less digits than its factorization.

20423412204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130919329 (or 130919327 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20423412204 its reverse (40221432402), we get a palindrome (60644844606).

The spelling of 20423412204 in words is "twenty billion, four hundred twenty-three million, four hundred twelve thousand, two hundred four".