131818376002242 has 16 divisors (see below), whose sum is σ = 267349945695552. Its totient is φ = 43320593052240.

The previous prime is 131818376002241. The next prime is 131818376002297. The reversal of 131818376002242 is 242200673818131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131818376002191 and 131818376002200.

It is not an unprimeable number, because it can be changed into a prime (131818376002241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154716403333 + ... + 154716404184.

It is an arithmetic number, because the mean of its divisors is an integer number (16709371605972).

Almost surely, 2^{131818376002242} is an apocalyptic number.

131818376002242 is an abundant number, since it is smaller than the sum of its proper divisors (135531569693310).

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

131818376002242 is a wasteful number, since it uses less digits than its factorization.

131818376002242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309432807593.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 131818376002242 in words is "one hundred thirty-one trillion, eight hundred eighteen billion, three hundred seventy-six million, two thousand, two hundred forty-two".