1044310021013 has 4 divisors (see below), whose sum is σ = 1193497166880. Its totient is φ = 895122875148.

The previous prime is 1044310021009. The next prime is 1044310021019. The reversal of 1044310021013 is 3101200134401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1044310021013 - 2² = 1044310021009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044310021019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74593572923 + ... + 74593572936.

It is an arithmetic number, because the mean of its divisors is an integer number (298374291720).

Almost surely, 2^{1044310021013} is an apocalyptic number.

It is an amenable number.

1044310021013 is a deficient number, since it is larger than the sum of its proper divisors (149187145867).

1044310021013 is an equidigital number, since it uses as much as digits as its factorization.

1044310021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149187145866.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1044310021013 its reverse (3101200134401), we get a palindrome (4145510155414).

The spelling of 1044310021013 in words is "one trillion, forty-four billion, three hundred ten million, twenty-one thousand, thirteen".