12340021120 has 128 divisors (see below), whose sum is σ = 33803697600. Its totient is φ = 4219699200.

The previous prime is 12340021117. The next prime is 12340021153. The reversal of 12340021120 is 2112004321.

12340021120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×12340021120² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 12340021094 and 12340021103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1793046 + ... + 1799914.

Almost surely, 2^12340021120 is an apocalyptic number.

12340021120 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 12340021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16901848800).

12340021120 is an abundant number, since it is smaller than the sum of its proper divisors (21463676480).

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

12340021120 is an equidigital number, since it uses as much as digits as its factorization.

12340021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7296 (or 7284 counting only the distinct ones).

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

Adding to 12340021120 its reverse (2112004321), we get a palindrome (14452025441).

The spelling of 12340021120 in words is "twelve billion, three hundred forty million, twenty-one thousand, one hundred twenty".