131011141243242 has 128 divisors (see below), whose sum is σ = 286269656924160. Its totient is φ = 39731836320000.

The previous prime is 131011141243211. The next prime is 131011141243291. The reversal of 131011141243242 is 242342141110131.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 875018767 + ... + 875168477.

It is an arithmetic number, because the mean of its divisors is an integer number (2236481694720).

Almost surely, 2^{131011141243242} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131011141243242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143134828462080).

131011141243242 is an abundant number, since it is smaller than the sum of its proper divisors (155258515680918).

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

131011141243242 is a wasteful number, since it uses less digits than its factorization.

131011141243242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150460.

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 131011141243242 its reverse (242342141110131), we get a palindrome (373353282353373).

The spelling of 131011141243242 in words is "one hundred thirty-one trillion, eleven billion, one hundred forty-one million, two hundred forty-three thousand, two hundred forty-two".