12020131035020 has 96 divisors (see below), whose sum is σ = 26204978774016. Its totient is φ = 4626469843200.

The previous prime is 12020131034983. The next prime is 12020131035037. The reversal of 12020131035020 is 2053013102021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12020131034983 and 12020131035001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271514927 + ... + 271559193.

It is an arithmetic number, because the mean of its divisors is an integer number (272968528896).

Almost surely, 2^{12020131035020} is an apocalyptic number.

12020131035020 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 12020131035020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13102489387008).

12020131035020 is an abundant number, since it is smaller than the sum of its proper divisors (14184847738996).

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

12020131035020 is a wasteful number, since it uses less digits than its factorization.

12020131035020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46791 (or 46789 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 12020131035020 its reverse (2053013102021), we get a palindrome (14073144137041).

The spelling of 12020131035020 in words is "twelve trillion, twenty billion, one hundred thirty-one million, thirty-five thousand, twenty".