131330322 has 96 divisors (see below), whose sum is σ = 318689280. Its totient is φ = 40415760.

The previous prime is 131330281. The next prime is 131330323. The reversal of 131330322 is 223033131.

131330322 is a `hidden beast` number, since 1 + 313 + 30 + 322 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 131330295 and 131330304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131330323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 346329 + ... + 346707.

It is an arithmetic number, because the mean of its divisors is an integer number (3319680).

Almost surely, 2^131330322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131330322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159344640).

131330322 is an abundant number, since it is smaller than the sum of its proper divisors (187358958).

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

131330322 is a wasteful number, since it uses less digits than its factorization.

131330322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 131330322 is about 11459.9442407020. The cubic root of 131330322 is about 508.3018258234.

Adding to 131330322 its reverse (223033131), we get a palindrome (354363453).

The spelling of 131330322 in words is "one hundred thirty-one million, three hundred thirty thousand, three hundred twenty-two".