12240543743 has 4 divisors (see below), whose sum is σ = 12256843488. Its totient is φ = 12224244000.

The previous prime is 12240543703. The next prime is 12240543767. The reversal of 12240543743 is 34734504221.

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

It is a cyclic number.

It is not a de Polignac number, because 12240543743 - 2²⁶ = 12173434879 is a prime.

It is a super-2 number, since 2×12240543743² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240543703) 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, 8148746 + ... + 8150247.

It is an arithmetic number, because the mean of its divisors is an integer number (3064210872).

Almost surely, 2^12240543743 is an apocalyptic number.

12240543743 is a deficient number, since it is larger than the sum of its proper divisors (16299745).

12240543743 is an equidigital number, since it uses as much as digits as its factorization.

12240543743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16299744.

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 12240543743 in words is "twelve billion, two hundred forty million, five hundred forty-three thousand, seven hundred forty-three".