131324242 has 16 divisors (see below), whose sum is σ = 225297792. Its totient is φ = 56239200.

The previous prime is 131324239. The next prime is 131324243. The reversal of 131324242 is 242423131.

It is not an unprimeable number, because it can be changed into a prime (131324243) 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, 21867 + ... + 27217.

It is an arithmetic number, because the mean of its divisors is an integer number (14081112).

Almost surely, 2^131324242 is an apocalyptic number.

131324242 is a deficient number, since it is larger than the sum of its proper divisors (93973550).

131324242 is a wasteful number, since it uses less digits than its factorization.

131324242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7113.

The product of its digits is 1152, while the sum is 22.

The square root of 131324242 is about 11459.6789658350. The cubic root of 131324242 is about 508.2939816771.

Adding to 131324242 its reverse (242423131), we get a palindrome (373747373).

The spelling of 131324242 in words is "one hundred thirty-one million, three hundred twenty-four thousand, two hundred forty-two".