12013413443 has 16 divisors (see below), whose sum is σ = 13091621760. Its totient is φ = 10981109376.

The previous prime is 12013413371. The next prime is 12013413457. The reversal of 12013413443 is 34431431021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12013413443 - 2²⁰ = 12012364867 is a prime.

It is a super-2 number, since 2×12013413443² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12013473443) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11096 + ... + 155402.

It is an arithmetic number, because the mean of its divisors is an integer number (818226360).

Almost surely, 2^12013413443 is an apocalyptic number.

12013413443 is a deficient number, since it is larger than the sum of its proper divisors (1078208317).

12013413443 is a wasteful number, since it uses less digits than its factorization.

12013413443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144466.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 12013413443 its reverse (34431431021), we get a palindrome (46444844464).

The spelling of 12013413443 in words is "twelve billion, thirteen million, four hundred thirteen thousand, four hundred forty-three".