12037520221743 has 4 divisors (see below), whose sum is σ = 16050026962328. Its totient is φ = 8025013481160.

The previous prime is 12037520221717. The next prime is 12037520221751. The reversal of 12037520221743 is 34712202573021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12037520221743 - 2²¹ = 12037518124591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12037520221043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2006253370288 + ... + 2006253370293.

It is an arithmetic number, because the mean of its divisors is an integer number (4012506740582).

Almost surely, 2^{12037520221743} is an apocalyptic number.

12037520221743 is a deficient number, since it is larger than the sum of its proper divisors (4012506740585).

12037520221743 is an equidigital number, since it uses as much as digits as its factorization.

12037520221743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012506740584.

The product of its (nonzero) digits is 141120, while the sum is 39.

Adding to 12037520221743 its reverse (34712202573021), we get a palindrome (46749722794764).

The spelling of 12037520221743 in words is "twelve trillion, thirty-seven billion, five hundred twenty million, two hundred twenty-one thousand, seven hundred forty-three".