12020023020 has 24 divisors (see below), whose sum is σ = 33656064624. Its totient is φ = 3205339456.

The previous prime is 12020023007. The next prime is 12020023021. The reversal of 12020023020 is 2032002021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12020022987 and 12020023005.

It is not an unprimeable number, because it can be changed into a prime (12020023021) 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, 100166799 + ... + 100166918.

It is an arithmetic number, because the mean of its divisors is an integer number (1402336026).

Almost surely, 2^12020023020 is an apocalyptic number.

12020023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020023020 is an abundant number, since it is smaller than the sum of its proper divisors (21636041604).

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

12020023020 is a wasteful number, since it uses less digits than its factorization.

12020023020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200333729 (or 200333727 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 12020023020 its reverse (2032002021), we get a palindrome (14052025041).

The spelling of 12020023020 in words is "twelve billion, twenty million, twenty-three thousand, twenty".