1001320319 has 8 divisors (see below), whose sum is σ = 1004977152. Its totient is φ = 997670520.

The previous prime is 1001320303. The next prime is 1001320321. The reversal of 1001320319 is 9130231001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001320319 - 2⁴ = 1001320303 is a prime.

It is a super-2 number, since 2×1001320319² = 2005284762484523522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001320319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001320219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560702 + ... + 562484.

It is an arithmetic number, because the mean of its divisors is an integer number (125622144).

Almost surely, 2^1001320319 is an apocalyptic number.

1001320319 is a deficient number, since it is larger than the sum of its proper divisors (3656833).

1001320319 is a wasteful number, since it uses less digits than its factorization.

1001320319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 1001320319 is about 31643.6457918490. The cubic root of 1001320319 is about 1000.4399127817.

The spelling of 1001320319 in words is "one billion, one million, three hundred twenty thousand, three hundred nineteen".