12101032020 has 192 divisors, whose sum is σ = 42529536000. Its totient is φ = 2497482240.

The previous prime is 12101032019. The next prime is 12101032109. The reversal of 12101032020 is 2023010121.

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 = 12101031987 and 12101032005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 679591 + ... + 697169.

It is an arithmetic number, because the mean of its divisors is an integer number (221508000).

Almost surely, 2^12101032020 is an apocalyptic number.

12101032020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12101032020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21264768000).

12101032020 is an abundant number, since it is smaller than the sum of its proper divisors (30428503980).

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

12101032020 is a wasteful number, since it uses less digits than its factorization.

12101032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17758 (or 17756 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12101032020 its reverse (2023010121), we get a palindrome (14124042141).

The spelling of 12101032020 in words is "twelve billion, one hundred one million, thirty-two thousand, twenty".