12040342423140 has 96 divisors (see below), whose sum is σ = 34052522999040. Its totient is φ = 3178440976896.

The previous prime is 12040342423097. The next prime is 12040342423157. The reversal of 12040342423140 is 4132424304021.

12040342423140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12040342423098 and 12040342423107.

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, 16886742 + ... + 17585298.

It is an arithmetic number, because the mean of its divisors is an integer number (354713781240).

Almost surely, 2^{12040342423140} is an apocalyptic number.

12040342423140 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 12040342423140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17026261499520).

12040342423140 is an abundant number, since it is smaller than the sum of its proper divisors (22012180575900).

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

12040342423140 is a wasteful number, since it uses less digits than its factorization.

12040342423140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701461 (or 701459 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 12040342423140 its reverse (4132424304021), we get a palindrome (16172766727161).

The spelling of 12040342423140 in words is "twelve trillion, forty billion, three hundred forty-two million, four hundred twenty-three thousand, one hundred forty".