1303001331 has 16 divisors (see below), whose sum is σ = 1807515648. Its totient is φ = 834019200.

The previous prime is 1303001321. The next prime is 1303001339. The reversal of 1303001331 is 1331003031.

It is not a de Polignac number, because 1303001331 - 2¹⁸ = 1302739187 is a prime.

It is a super-2 number, since 2×1303001331² = 3395624937175543122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1303001331.

It is not an unprimeable number, because it can be changed into a prime (1303001339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43350 + ... + 66971.

It is an arithmetic number, because the mean of its divisors is an integer number (112969728).

Almost surely, 2^1303001331 is an apocalyptic number.

1303001331 is a deficient number, since it is larger than the sum of its proper divisors (504514317).

1303001331 is a wasteful number, since it uses less digits than its factorization.

1303001331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110482.

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

The square root of 1303001331 is about 36097.1097319439. The cubic root of 1303001331 is about 1092.2321429809.

Adding to 1303001331 its reverse (1331003031), we get a palindrome (2634004362).

The spelling of 1303001331 in words is "one billion, three hundred three million, one thousand, three hundred thirty-one".