131240320303 has 4 divisors (see below), whose sum is σ = 131899819600. Its totient is φ = 130580821008.

The previous prime is 131240320259. The next prime is 131240320307. The reversal of 131240320303 is 303023042131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303023042131 = 31511 ⋅9616421.

It is a cyclic number.

It is not a de Polignac number, because 131240320303 - 2²⁵ = 131206765871 is a prime.

It is a super-3 number, since 3×131240320303³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131240320307) 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, 329749350 + ... + 329749747.

It is an arithmetic number, because the mean of its divisors is an integer number (32974954900).

Almost surely, 2^131240320303 is an apocalyptic number.

131240320303 is a deficient number, since it is larger than the sum of its proper divisors (659499297).

131240320303 is an equidigital number, since it uses as much as digits as its factorization.

131240320303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659499296.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 131240320303 its reverse (303023042131), we get a palindrome (434263362434).

The spelling of 131240320303 in words is "one hundred thirty-one billion, two hundred forty million, three hundred twenty thousand, three hundred three".