131011220313242 has 8 divisors (see below), whose sum is σ = 196726560281076. Its totient is φ = 65435700219552.

The previous prime is 131011220313241. The next prime is 131011220313313. The reversal of 131011220313242 is 242313022110131.

It can be written as a sum of positive squares in 2 ways, for example, as 128226657285841 + 2784563027401 = 11323721^2 + 1668701^2 .

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

It is not an unprimeable number, because it can be changed into a prime (131011220313241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34954966193 + ... + 34954969940.

Almost surely, 2^{131011220313242} is an apocalyptic number.

131011220313242 is a deficient number, since it is larger than the sum of its proper divisors (65715339967834).

131011220313242 is an equidigital number, since it uses as much as digits as its factorization.

131011220313242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69909937072.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 131011220313242 its reverse (242313022110131), we get a palindrome (373324242423373).

The spelling of 131011220313242 in words is "one hundred thirty-one trillion, eleven billion, two hundred twenty million, three hundred thirteen thousand, two hundred forty-two".