12002113420 has 144 divisors (see below), whose sum is σ = 30171103200. Its totient is φ = 3991680000.

The previous prime is 12002113399. The next prime is 12002113429. The reversal of 12002113420 is 2431120021.

It is a junction number, because it is equal to n+sod(n) for n = 12002113394 and 12002113403.

It is not an unprimeable number, because it can be changed into a prime (12002113429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1328920 + ... + 1337920.

It is an arithmetic number, because the mean of its divisors is an integer number (209521550).

Almost surely, 2^12002113420 is an apocalyptic number.

12002113420 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 12002113420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15085551600).

12002113420 is an abundant number, since it is smaller than the sum of its proper divisors (18168989780).

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

12002113420 is a wasteful number, since it uses less digits than its factorization.

12002113420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9080 (or 9067 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12002113420 its reverse (2431120021), we get a palindrome (14433233441).

The spelling of 12002113420 in words is "twelve billion, two million, one hundred thirteen thousand, four hundred twenty".