1044310021 has 2 divisors, whose sum is σ = 1044310022. Its totient is φ = 1044310020.

The previous prime is 1044310019. The next prime is 1044310027. The reversal of 1044310021 is 1200134401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 984076900 + 60233121 = 31370^2 + 7761^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044310021 - 2¹ = 1044310019 is a prime.

It is a super-2 number, since 2×1044310021² = 2181166839922040882, which contains 22 as substring.

Together with 1044310019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1044309977 and 1044310004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1044310027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522155010 + 522155011.

It is an arithmetic number, because the mean of its divisors is an integer number (522155011).

Almost surely, 2^1044310021 is an apocalyptic number.

It is an amenable number.

1044310021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044310021 is an equidigital number, since it uses as much as digits as its factorization.

1044310021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1044310021 is about 32315.7859412393. The cubic root of 1044310021 is about 1014.5570704454.

Adding to 1044310021 its reverse (1200134401), we get a palindrome (2244444422).

The spelling of 1044310021 in words is "one billion, forty-four million, three hundred ten thousand, twenty-one".