131021132303 has 4 divisors (see below), whose sum is σ = 131052685008. Its totient is φ = 130989579600.

The previous prime is 131021132261. The next prime is 131021132339. The reversal of 131021132303 is 303231120131.

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 131021132303 - 2¹⁸ = 131020870159 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 (131021132383) 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, 15770123 + ... + 15778428.

It is an arithmetic number, because the mean of its divisors is an integer number (32763171252).

Almost surely, 2^131021132303 is an apocalyptic number.

131021132303 is a deficient number, since it is larger than the sum of its proper divisors (31552705).

131021132303 is an equidigital number, since it uses as much as digits as its factorization.

131021132303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31552704.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131021132303 its reverse (303231120131), we get a palindrome (434252252434).

The spelling of 131021132303 in words is "one hundred thirty-one billion, twenty-one million, one hundred thirty-two thousand, three hundred three".