12020424113440 has 48 divisors (see below), whose sum is σ = 28401677817912. Its totient is φ = 4807589607424.

The previous prime is 12020424113437. The next prime is 12020424113449. The reversal of 12020424113440 is 4431142402021.

It can be written as a sum of positive squares in 4 ways, for example, as 12017620622736 + 2803490704 = 3466644^2 + 52948^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12020424113399 and 12020424113408.

It is not an unprimeable number, because it can be changed into a prime (12020424113449) 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, 3199879 + ... + 5854918.

Almost surely, 2^{12020424113440} is an apocalyptic number.

12020424113440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020424113440 is an abundant number, since it is smaller than the sum of its proper divisors (16381253704472).

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

12020424113440 is an equidigital number, since it uses as much as digits as its factorization.

12020424113440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9063109 (or 9063101 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 12020424113440 its reverse (4431142402021), we get a palindrome (16451566515461).

The spelling of 12020424113440 in words is "twelve trillion, twenty billion, four hundred twenty-four million, one hundred thirteen thousand, four hundred forty".