201131201303 has 4 divisors (see below), whose sum is σ = 201135054960. Its totient is φ = 201127347648.

The previous prime is 201131201279. The next prime is 201131201309. The reversal of 201131201303 is 303102131102.

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 201131201303 - 2³⁰ = 200057459479 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 (201131201309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1847450 + ... + 1953287.

It is an arithmetic number, because the mean of its divisors is an integer number (50283763740).

Almost surely, 2^201131201303 is an apocalyptic number.

201131201303 is a deficient number, since it is larger than the sum of its proper divisors (3853657).

201131201303 is an equidigital number, since it uses as much as digits as its factorization.

201131201303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3853656.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 201131201303 its reverse (303102131102), we get a palindrome (504233332405).

The spelling of 201131201303 in words is "two hundred one billion, one hundred thirty-one million, two hundred one thousand, three hundred three".