131130342 has 24 divisors (see below), whose sum is σ = 324704016. Its totient is φ = 37465776.

The previous prime is 131130317. The next prime is 131130347. The reversal of 131130342 is 243031131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131130347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 520233 + ... + 520484.

It is an arithmetic number, because the mean of its divisors is an integer number (13529334).

Almost surely, 2^131130342 is an apocalyptic number.

131130342 is an abundant number, since it is smaller than the sum of its proper divisors (193573674).

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

131130342 is a wasteful number, since it uses less digits than its factorization.

131130342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040732 (or 1040729 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 131130342 is about 11451.2157433174. The cubic root of 131130342 is about 508.0436934125.

Adding to 131130342 its reverse (243031131), we get a palindrome (374161473).

The spelling of 131130342 in words is "one hundred thirty-one million, one hundred thirty thousand, three hundred forty-two".