12012335143240 has 64 divisors (see below), whose sum is σ = 28055481408000. Its totient is φ = 4623958801920.

The previous prime is 12012335143229. The next prime is 12012335143241. The reversal of 12012335143240 is 4234153321021.

12012335143240 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 (31).

It is not an unprimeable number, because it can be changed into a prime (12012335143241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26837725 + ... + 27281644.

It is an arithmetic number, because the mean of its divisors is an integer number (438366897000).

Almost surely, 2^{12012335143240} is an apocalyptic number.

12012335143240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012335143240 is an abundant number, since it is smaller than the sum of its proper divisors (16043146264760).

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

12012335143240 is a wasteful number, since it uses less digits than its factorization.

12012335143240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54119590 (or 54119586 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 12012335143240 its reverse (4234153321021), we get a palindrome (16246488464261).

The spelling of 12012335143240 in words is "twelve trillion, twelve billion, three hundred thirty-five million, one hundred forty-three thousand, two hundred forty".