4001312043 has 6 divisors (see below), whose sum is σ = 5779672964. Its totient is φ = 2667541356.

The previous prime is 4001312041. The next prime is 4001312059. The reversal of 4001312043 is 3402131004.

It is not a de Polignac number, because 4001312043 - 2¹ = 4001312041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4001312041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 222295105 + ... + 222295122.

Almost surely, 2^4001312043 is an apocalyptic number.

4001312043 is a deficient number, since it is larger than the sum of its proper divisors (1778360921).

4001312043 is a wasteful number, since it uses less digits than its factorization.

4001312043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444590233 (or 444590230 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4001312043 is about 63255.9249635953. The cubic root of 4001312043 is about 1587.5745945315.

Adding to 4001312043 its reverse (3402131004), we get a palindrome (7403443047).

The spelling of 4001312043 in words is "four billion, one million, three hundred twelve thousand, forty-three".