131442324233243 has 4 divisors (see below), whose sum is σ = 131459810249040. Its totient is φ = 131424838217448.

The previous prime is 131442324233237. The next prime is 131442324233299. The reversal of 131442324233243 is 342332423244131.

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 131442324233243 - 2⁴⁴ = 113850138188827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131442324233243.

It is not an unprimeable number, because it can be changed into a prime (131442324233743) 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, 8742996623 + ... + 8743011656.

It is an arithmetic number, because the mean of its divisors is an integer number (32864952562260).

Almost surely, 2^{131442324233243} is an apocalyptic number.

131442324233243 is a deficient number, since it is larger than the sum of its proper divisors (17486015797).

131442324233243 is an equidigital number, since it uses as much as digits as its factorization.

131442324233243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17486015796.

The product of its digits is 995328, while the sum is 41.

Adding to 131442324233243 its reverse (342332423244131), we get a palindrome (473774747477374).

The spelling of 131442324233243 in words is "one hundred thirty-one trillion, four hundred forty-two billion, three hundred twenty-four million, two hundred thirty-three thousand, two hundred forty-three".