131342320 has 40 divisors (see below), whose sum is σ = 306525024. Its totient is φ = 52338432.

The previous prime is 131342287. The next prime is 131342347. The reversal of 131342320 is 23243131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19197 + ... + 25123.

Almost surely, 2^131342320 is an apocalyptic number.

131342320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131342320 is an abundant number, since it is smaller than the sum of its proper divisors (175182704).

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

131342320 is a wasteful number, since it uses less digits than its factorization.

131342320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6217 (or 6211 counting only the distinct ones).

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

The square root of 131342320 is about 11460.4677042431. The cubic root of 131342320 is about 508.3173044007.

Adding to 131342320 its reverse (23243131), we get a palindrome (154585451).

The spelling of 131342320 in words is "one hundred thirty-one million, three hundred forty-two thousand, three hundred twenty".