131020443040242 has 48 divisors (see below), whose sum is σ = 306764619897600. Its totient is φ = 37195976536992.

The previous prime is 131020443040177. The next prime is 131020443040261. The reversal of 131020443040242 is 242040344020131.

It is a super-2 number, since 2×131020443040242² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1419214242 + ... + 1419306557.

It is an arithmetic number, because the mean of its divisors is an integer number (6390929581200).

Almost surely, 2^{131020443040242} is an apocalyptic number.

131020443040242 is an abundant number, since it is smaller than the sum of its proper divisors (175744176857358).

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

131020443040242 is a wasteful number, since it uses less digits than its factorization.

131020443040242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838520975 (or 2838520968 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 131020443040242 its reverse (242040344020131), we get a palindrome (373060787060373).

The spelling of 131020443040242 in words is "one hundred thirty-one trillion, twenty billion, four hundred forty-three million, forty thousand, two hundred forty-two".