131442140434 has 64 divisors (see below), whose sum is σ = 223527807360. Its totient is φ = 57444180480.

The previous prime is 131442140413. The next prime is 131442140437. The reversal of 131442140434 is 434041244131.

It is a junction number, because it is equal to n+sod(n) for n = 131442140396 and 131442140405.

It is not an unprimeable number, because it can be changed into a prime (131442140437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25535049 + ... + 25540195.

It is an arithmetic number, because the mean of its divisors is an integer number (3492621990).

Almost surely, 2^131442140434 is an apocalyptic number.

131442140434 is a deficient number, since it is larger than the sum of its proper divisors (92085666926).

131442140434 is a wasteful number, since it uses less digits than its factorization.

131442140434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 131442140434 its reverse (434041244131), we get a palindrome (565483384565).

The spelling of 131442140434 in words is "one hundred thirty-one billion, four hundred forty-two million, one hundred forty thousand, four hundred thirty-four".