12541240000 has 140 divisors (see below), whose sum is σ = 32929290504. Its totient is φ = 4721152000.

The previous prime is 12541239961. The next prime is 12541240013. The reversal of 12541240000 is 4214521.

It is a self number, because there is not a number n which added to its sum of digits gives 12541240000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 670779 + ... + 689221.

Almost surely, 2^12541240000 is an apocalyptic number.

12541240000 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 12541240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16464645252).

12541240000 is an abundant number, since it is smaller than the sum of its proper divisors (20388050504).

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

12541240000 is an equidigital number, since it uses as much as digits as its factorization.

12541240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18492 (or 18467 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 12541240000 its reverse (4214521), we get a palindrome (12545454521).

The spelling of 12541240000 in words is "twelve billion, five hundred forty-one million, two hundred forty thousand".