12043636343643 has 16 divisors (see below), whose sum is σ = 16228289960960. Its totient is φ = 7944083341056.

The previous prime is 12043636343617. The next prime is 12043636343657. The reversal of 12043636343643 is 34634363634021.

It is not a de Polignac number, because 12043636343643 - 2¹⁷ = 12043636212571 is a prime.

It is a super-2 number, since 2×12043636343643² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12043636343592 and 12043636343601.

It is not an unprimeable number, because it can be changed into a prime (12043636343663) 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, 4778755 + ... + 6850092.

It is an arithmetic number, because the mean of its divisors is an integer number (1014268122560).

Almost surely, 2^{12043636343643} is an apocalyptic number.

12043636343643 is a deficient number, since it is larger than the sum of its proper divisors (4184653617317).

12043636343643 is a wasteful number, since it uses less digits than its factorization.

12043636343643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11632506.

The product of its (nonzero) digits is 6718464, while the sum is 48.

Adding to 12043636343643 its reverse (34634363634021), we get a palindrome (46677999977664).

The spelling of 12043636343643 in words is "twelve trillion, forty-three billion, six hundred thirty-six million, three hundred forty-three thousand, six hundred forty-three".