1044013403321 has 16 divisors (see below), whose sum is σ = 1255984329600. Its totient is φ = 847751142528.

The previous prime is 1044013403309. The next prime is 1044013403347. The reversal of 1044013403321 is 1233043104401.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1044013403321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1044013405321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11543645 + ... + 11633733.

It is an arithmetic number, because the mean of its divisors is an integer number (78499020600).

Almost surely, 2^{1044013403321} is an apocalyptic number.

It is an amenable number.

1044013403321 is a deficient number, since it is larger than the sum of its proper divisors (211970926279).

1044013403321 is an equidigital number, since it uses as much as digits as its factorization.

1044013403321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177248.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1044013403321 its reverse (1233043104401), we get a palindrome (2277056507722).

The spelling of 1044013403321 in words is "one trillion, forty-four billion, thirteen million, four hundred three thousand, three hundred twenty-one".