131442440023 has 16 divisors (see below), whose sum is σ = 136130500800. Its totient is φ = 126817056000.

The previous prime is 131442439987. The next prime is 131442440117. The reversal of 131442440023 is 320044244131.

It is not a de Polignac number, because 131442440023 - 2¹⁷ = 131442308951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131442439973 and 131442440000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131442440323) 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, 3293478 + ... + 3333148.

It is an arithmetic number, because the mean of its divisors is an integer number (8508156300).

Almost surely, 2^131442440023 is an apocalyptic number.

131442440023 is a deficient number, since it is larger than the sum of its proper divisors (4688060777).

131442440023 is a wasteful number, since it uses less digits than its factorization.

131442440023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40458.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 131442440023 its reverse (320044244131), we get a palindrome (451486684154).

The spelling of 131442440023 in words is "one hundred thirty-one billion, four hundred forty-two million, four hundred forty thousand, twenty-three".