131323333441 has 4 divisors (see below), whose sum is σ = 131654123092. Its totient is φ = 130992543792.

The previous prime is 131323333433. The next prime is 131323333447. The reversal of 131323333441 is 144333323131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68958760000 + 62364573441 = 262600^2 + 249729^2 .

It is a cyclic number.

It is not a de Polignac number, because 131323333441 - 2³ = 131323333433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131323333447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165394230 + ... + 165395023.

It is an arithmetic number, because the mean of its divisors is an integer number (32913530773).

Almost surely, 2^131323333441 is an apocalyptic number.

It is an amenable number.

131323333441 is a deficient number, since it is larger than the sum of its proper divisors (330789651).

131323333441 is an equidigital number, since it uses as much as digits as its factorization.

131323333441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330789650.

The product of its digits is 23328, while the sum is 31.

Adding to 131323333441 its reverse (144333323131), we get a palindrome (275656656572).

The spelling of 131323333441 in words is "one hundred thirty-one billion, three hundred twenty-three million, three hundred thirty-three thousand, four hundred forty-one".