1043321012 has 24 divisors (see below), whose sum is σ = 1848974400. Its totient is φ = 515059776.

The previous prime is 1043320979. The next prime is 1043321017. The reversal of 1043321012 is 2101233401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043321017) 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 7 ways as a sum of consecutive naturals, for example, 312689 + ... + 316007.

It is an arithmetic number, because the mean of its divisors is an integer number (77040600).

Almost surely, 2^1043321012 is an apocalyptic number.

It is an amenable number.

1043321012 is a deficient number, since it is larger than the sum of its proper divisors (805653388).

1043321012 is a wasteful number, since it uses less digits than its factorization.

1043321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4295 (or 4293 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1043321012 is about 32300.4800583521. The cubic root of 1043321012 is about 1014.2366920848.

Adding to 1043321012 its reverse (2101233401), we get a palindrome (3144554413).

The spelling of 1043321012 in words is "one billion, forty-three million, three hundred twenty-one thousand, twelve".