131303242 has 48 divisors (see below), whose sum is σ = 242300160. Its totient is φ = 53122272.

The previous prime is 131303239. The next prime is 131303273. The reversal of 131303242 is 242303131.

It is a congruent number.

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, 133083 + ... + 134065.

It is an arithmetic number, because the mean of its divisors is an integer number (5047920).

Almost surely, 2^131303242 is an apocalyptic number.

131303242 is a deficient number, since it is larger than the sum of its proper divisors (110996918).

131303242 is a wasteful number, since it uses less digits than its factorization.

131303242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 131303242 is about 11458.7626731685. The cubic root of 131303242 is about 508.2668865461.

Adding to 131303242 its reverse (242303131), we get a palindrome (373606373).

The spelling of 131303242 in words is "one hundred thirty-one million, three hundred three thousand, two hundred forty-two".