1331303001 has 48 divisors (see below), whose sum is σ = 2193998400. Its totient is φ = 713930112.

The previous prime is 1331302993. The next prime is 1331303003. The reversal of 1331303001 is 1003031331.

It is not a de Polignac number, because 1331303001 - 2³ = 1331302993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1331303003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 302251 + ... + 306623.

It is an arithmetic number, because the mean of its divisors is an integer number (45708300).

Almost surely, 2^1331303001 is an apocalyptic number.

It is an amenable number.

1331303001 is a deficient number, since it is larger than the sum of its proper divisors (862695399).

1331303001 is a wasteful number, since it uses less digits than its factorization.

1331303001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4518 (or 4511 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 1331303001 is about 36487.0251048232. The cubic root of 1331303001 is about 1100.0834650166.

Adding to 1331303001 its reverse (1003031331), we get a palindrome (2334334332).

The spelling of 1331303001 in words is "one billion, three hundred thirty-one million, three hundred three thousand, one".