1044120313 has 4 divisors (see below), whose sum is σ = 1044188788. Its totient is φ = 1044051840.

The previous prime is 1044120277. The next prime is 1044120317. The reversal of 1044120313 is 3130214401.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 658076409 + 386043904 = 25653^2 + 19648^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044120313 - 2⁹ = 1044119801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1044120317) 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, 145 + ... + 45697.

It is an arithmetic number, because the mean of its divisors is an integer number (261047197).

Almost surely, 2^1044120313 is an apocalyptic number.

It is an amenable number.

1044120313 is a deficient number, since it is larger than the sum of its proper divisors (68475).

1044120313 is an equidigital number, since it uses as much as digits as its factorization.

1044120313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68474.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1044120313 is about 32312.8505861058. The cubic root of 1044120313 is about 1014.4956323524.

Adding to 1044120313 its reverse (3130214401), we get a palindrome (4174334714).

The spelling of 1044120313 in words is "one billion, forty-four million, one hundred twenty thousand, three hundred thirteen".