1003001313 has 8 divisors (see below), whose sum is σ = 1338955488. Its totient is φ = 667857344.

The previous prime is 1003001303. The next prime is 1003001339. The reversal of 1003001313 is 3131003001.

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 1003001313 - 2⁵ = 1003001281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1003001303) 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, 199656 + ... + 204617.

It is an arithmetic number, because the mean of its divisors is an integer number (167369436).

Almost surely, 2^1003001313 is an apocalyptic number.

It is an amenable number.

1003001313 is a deficient number, since it is larger than the sum of its proper divisors (335954175).

1003001313 is an equidigital number, since it uses as much as digits as its factorization.

1003001313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405103.

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 1003001313 is about 31670.1959735016. The cubic root of 1003001313 is about 1000.9994384567. Note that the first 3 decimals are identical.

Adding to 1003001313 its reverse (3131003001), we get a palindrome (4134004314).

It can be divided in two parts, 1003001 and 313, that multiplied together give a palindrome (313939313).

The spelling of 1003001313 in words is "one billion, three million, one thousand, three hundred thirteen".