131011203303 has 20 divisors (see below), whose sum is σ = 195718889080. Its totient is φ = 87335984592.

The previous prime is 131011203269. The next prime is 131011203311. The reversal of 131011203303 is 303302110131.

It is a happy number.

131011203303 is a `hidden beast` number, since 1 + 310 + 1 + 1 + 20 + 330 + 3 = 666.

It is not a de Polignac number, because 131011203303 - 2⁸ = 131011203047 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 (131011201303) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2018076 + ... + 2081982.

It is an arithmetic number, because the mean of its divisors is an integer number (9785944454).

Almost surely, 2^131011203303 is an apocalyptic number.

131011203303 is a deficient number, since it is larger than the sum of its proper divisors (64707685777).

131011203303 is an equidigital number, since it uses as much as digits as its factorization.

131011203303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89228 (or 89219 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 131011203303 its reverse (303302110131), we get a palindrome (434313313434).

The spelling of 131011203303 in words is "one hundred thirty-one billion, eleven million, two hundred three thousand, three hundred three".