131442205422 has 64 divisors (see below), whose sum is σ = 288177626880. Its totient is φ = 39637516800.

The previous prime is 131442205381. The next prime is 131442205501. The reversal of 131442205422 is 224502244131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131442205422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37202368 + ... + 37205900.

It is an arithmetic number, because the mean of its divisors is an integer number (4502775420).

Almost surely, 2^131442205422 is an apocalyptic number.

131442205422 is an abundant number, since it is smaller than the sum of its proper divisors (156735421458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131442205422 is a wasteful number, since it uses less digits than its factorization.

131442205422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6129.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 131442205422 its reverse (224502244131), we get a palindrome (355944449553).

The spelling of 131442205422 in words is "one hundred thirty-one billion, four hundred forty-two million, two hundred five thousand, four hundred twenty-two".