1043043421 has 16 divisors (see below), whose sum is σ = 1210619520. Its totient is φ = 880197120.

The previous prime is 1043043413. The next prime is 1043043427. The reversal of 1043043421 is 1243403401.

It is a cyclic number.

It is not a de Polignac number, because 1043043421 - 2³ = 1043043413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1043043392 and 1043043401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043043427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146670 + ... + 153616.

It is an arithmetic number, because the mean of its divisors is an integer number (75663720).

Almost surely, 2^1043043421 is an apocalyptic number.

It is an amenable number.

1043043421 is a deficient number, since it is larger than the sum of its proper divisors (167576099).

1043043421 is an equidigital number, since it uses as much as digits as its factorization.

1043043421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7284.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1043043421 is about 32296.1827620541. The cubic root of 1043043421 is about 1014.1467332106.

Adding to 1043043421 its reverse (1243403401), we get a palindrome (2286446822).

The spelling of 1043043421 in words is "one billion, forty-three million, forty-three thousand, four hundred twenty-one".