43002002231 has 4 divisors (see below), whose sum is σ = 45531531792. Its totient is φ = 40472472672.

The previous prime is 43002002167. The next prime is 43002002269. The reversal of 43002002231 is 13220020034.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43002002231 - 2⁶ = 43002002167 is a prime.

It is a super-2 number, since 2×43002002231² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 2529529543 = 43002002231 / (4 + 3 + 0 + 0 + 2 + 0 + 0 + 2 + 2 + 3 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43002002431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1264764755 + ... + 1264764788.

It is an arithmetic number, because the mean of its divisors is an integer number (11382882948).

Almost surely, 2^43002002231 is an apocalyptic number.

43002002231 is a deficient number, since it is larger than the sum of its proper divisors (2529529561).

43002002231 is a wasteful number, since it uses less digits than its factorization.

43002002231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529529560.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 43002002231 its reverse (13220020034), we get a palindrome (56222022265).

The spelling of 43002002231 in words is "forty-three billion, two million, two thousand, two hundred thirty-one".