43044003343121 has 16 divisors (see below), whose sum is σ = 48576646693440. Its totient is φ = 37781304348480.

The previous prime is 43044003343093. The next prime is 43044003343153. The reversal of 43044003343121 is 12134330044034.

It is a de Polignac number, because none of the positive numbers 2^k-43044003343121 is a prime.

It is a super-2 number, since 2×43044003343121² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43044003346121) 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, 55075535 + ... + 55851611.

It is an arithmetic number, because the mean of its divisors is an integer number (3036040418340).

Almost surely, 2^{43044003343121} is an apocalyptic number.

It is an amenable number.

43044003343121 is a deficient number, since it is larger than the sum of its proper divisors (5532643350319).

43044003343121 is a wasteful number, since it uses less digits than its factorization.

43044003343121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949984.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 43044003343121 its reverse (12134330044034), we get a palindrome (55178333387155).

The spelling of 43044003343121 in words is "forty-three trillion, forty-four billion, three million, three hundred forty-three thousand, one hundred twenty-one".