131011443223243 has 16 divisors (see below), whose sum is σ = 144499983164640. Its totient is φ = 117792435001600.

The previous prime is 131011443223229. The next prime is 131011443223259. The reversal of 131011443223243 is 342322344110131.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131011443223243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131011443223199 and 131011443223208.

It is not an unprimeable number, because it can be changed into a prime (131011443229243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161184328 + ... + 161995093.

It is an arithmetic number, because the mean of its divisors is an integer number (9031248947790).

Almost surely, 2^{131011443223243} is an apocalyptic number.

131011443223243 is a deficient number, since it is larger than the sum of its proper divisors (13488539941397).

131011443223243 is a wasteful number, since it uses less digits than its factorization.

131011443223243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323179838.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 131011443223243 its reverse (342322344110131), we get a palindrome (473333787333374).

The spelling of 131011443223243 in words is "one hundred thirty-one trillion, eleven billion, four hundred forty-three million, two hundred twenty-three thousand, two hundred forty-three".