3131201303 has 4 divisors (see below), whose sum is σ = 3138334320. Its totient is φ = 3124068288.

The previous prime is 3131201299. The next prime is 3131201323. The reversal of 3131201303 is 3031021313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3131201303 - 2² = 3131201299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131201323) 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 3 ways as a sum of consecutive naturals, for example, 3565850 + ... + 3566727.

It is an arithmetic number, because the mean of its divisors is an integer number (784583580).

Almost surely, 2^3131201303 is an apocalyptic number.

3131201303 is a deficient number, since it is larger than the sum of its proper divisors (7133017).

3131201303 is an equidigital number, since it uses as much as digits as its factorization.

3131201303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7133016.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 3131201303 is about 55957.1380880045. The cubic root of 3131201303 is about 1462.9753085137.

Adding to 3131201303 its reverse (3031021313), we get a palindrome (6162222616).

The spelling of 3131201303 in words is "three billion, one hundred thirty-one million, two hundred one thousand, three hundred three".