131022023204441 has 4 divisors (see below), whose sum is σ = 131192402949300. Its totient is φ = 130851643459584.

The previous prime is 131022023204419. The next prime is 131022023204459. The reversal of 131022023204441 is 144402320220131.

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 32938749514441 + 98083273690000 = 5739229^2 + 9903700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131022023204441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131022023204411) 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, 85189871276 + ... + 85189872813.

It is an arithmetic number, because the mean of its divisors is an integer number (32798100737325).

Almost surely, 2^{131022023204441} is an apocalyptic number.

It is an amenable number.

131022023204441 is a deficient number, since it is larger than the sum of its proper divisors (170379744859).

131022023204441 is an equidigital number, since it uses as much as digits as its factorization.

131022023204441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170379744858.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 131022023204441 its reverse (144402320220131), we get a palindrome (275424343424572).

The spelling of 131022023204441 in words is "one hundred thirty-one trillion, twenty-two billion, twenty-three million, two hundred four thousand, four hundred forty-one".