43042040001 has 12 divisors (see below), whose sum is σ = 62195008512. Its totient is φ = 28683998136.

The previous prime is 43042039991. The next prime is 43042040123. The reversal of 43042040001 is 10004024034.

It is not a de Polignac number, because 43042040001 - 2¹⁴ = 43042023617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43042047001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 865741 + ... + 914106.

It is an arithmetic number, because the mean of its divisors is an integer number (5182917376).

Almost surely, 2^43042040001 is an apocalyptic number.

It is an amenable number.

43042040001 is a deficient number, since it is larger than the sum of its proper divisors (19152968511).

43042040001 is a wasteful number, since it uses less digits than its factorization.

43042040001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782540 (or 1782537 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 43042040001 its reverse (10004024034), we get a palindrome (53046064035).

The spelling of 43042040001 in words is "forty-three billion, forty-two million, forty thousand, one".