1043044321 has 12 divisors (see below), whose sum is σ = 1183474432. Its totient is φ = 917631000.

The previous prime is 1043044313. The next prime is 1043044357. The reversal of 1043044321 is 1234403401.

It is not a de Polignac number, because 1043044321 - 2³ = 1043044313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1043044292 and 1043044301.

It is not an unprimeable number, because it can be changed into a prime (1043044361) 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, 135285 + ... + 142786.

Almost surely, 2^1043044321 is an apocalyptic number.

1043044321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1043044321 is a deficient number, since it is larger than the sum of its proper divisors (140430111).

1043044321 is a wasteful number, since it uses less digits than its factorization.

1043044321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278124 (or 278113 counting only the distinct ones).

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

The square root of 1043044321 is about 32296.1966955863. The cubic root of 1043044321 is about 1014.1470248993.

Adding to 1043044321 its reverse (1234403401), we get a palindrome (2277447722).

The spelling of 1043044321 in words is "one billion, forty-three million, forty-four thousand, three hundred twenty-one".