131142144442 has 8 divisors (see below), whose sum is σ = 197054142516. Its totient is φ = 65457430272.

The previous prime is 131142144421. The next prime is 131142144491. The reversal of 131142144442 is 244441241131.

It can be written as a sum of positive squares in 2 ways, for example, as 128550214521 + 2591929921 = 358539^2 + 50911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56819533 + ... + 56821840.

Almost surely, 2^131142144442 is an apocalyptic number.

131142144442 is a deficient number, since it is larger than the sum of its proper divisors (65911998074).

131142144442 is a wasteful number, since it uses less digits than its factorization.

131142144442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113641952.

The product of its digits is 12288, while the sum is 31.

Adding to 131142144442 its reverse (244441241131), we get a palindrome (375583385573).

The spelling of 131142144442 in words is "one hundred thirty-one billion, one hundred forty-two million, one hundred forty-four thousand, four hundred forty-two".