1001440313 has 4 divisors (see below), whose sum is σ = 1006683648. Its totient is φ = 996196980.

The previous prime is 1001440283. The next prime is 1001440333. The reversal of 1001440313 is 3130441001.

1001440313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1001440313 - 2⁶ = 1001440249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001440291 and 1001440300.

It is not an unprimeable number, because it can be changed into a prime (1001440333) 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, 2621381 + ... + 2621762.

It is an arithmetic number, because the mean of its divisors is an integer number (251670912).

Almost surely, 2^1001440313 is an apocalyptic number.

It is an amenable number.

1001440313 is a deficient number, since it is larger than the sum of its proper divisors (5243335).

1001440313 is an equidigital number, since it uses as much as digits as its factorization.

1001440313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243334.

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

The square root of 1001440313 is about 31645.5417555143. The cubic root of 1001440313 is about 1000.4798740174.

Adding to 1001440313 its reverse (3130441001), we get a palindrome (4131881314).

The spelling of 1001440313 in words is "one billion, one million, four hundred forty thousand, three hundred thirteen".