131323302 has 32 divisors (see below), whose sum is σ = 318360960. Its totient is φ = 39794760.

The previous prime is 131323279. The next prime is 131323303. The reversal of 131323302 is 203323131.

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 (131323303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109948 + ... + 111135.

It is an arithmetic number, because the mean of its divisors is an integer number (9948780).

Almost surely, 2^131323302 is an apocalyptic number.

131323302 is an abundant number, since it is smaller than the sum of its proper divisors (187037658).

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

131323302 is a wasteful number, since it uses less digits than its factorization.

131323302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221105 (or 221099 counting only the distinct ones).

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

The square root of 131323302 is about 11459.6379523962. The cubic root of 131323302 is about 508.2927689092.

Adding to 131323302 its reverse (203323131), we get a palindrome (334646433).

The spelling of 131323302 in words is "one hundred thirty-one million, three hundred twenty-three thousand, three hundred two".