43000000003 has 4 divisors (see below), whose sum is σ = 43263803848. Its totient is φ = 42736196160.

The previous prime is 42999999997. The next prime is 43000000019. The reversal of 43000000003 is 30000000034.

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 43000000003 - 2³³ = 34410065411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43000006003) 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, 131901678 + ... + 131902003.

It is an arithmetic number, because the mean of its divisors is an integer number (10815950962).

Almost surely, 2^43000000003 is an apocalyptic number.

43000000003 is a deficient number, since it is larger than the sum of its proper divisors (263803845).

43000000003 is a wasteful number, since it uses less digits than its factorization.

43000000003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263803844.

The product of its (nonzero) digits is 36, while the sum is 10.

Adding to 43000000003 its reverse (30000000034), we get a palindrome (73000000037).

The spelling of 43000000003 in words is "forty-three billion, three", and thus it is an aban number and an uban number.