131131330 has 96 divisors (see below), whose sum is σ = 278374320. Its totient is φ = 44352000.

The previous prime is 131131321. The next prime is 131131337. The reversal of 131131330 is 33131131.

It can be written as a sum of positive squares in 8 ways, for example, as 117874449 + 13256881 = 10857^2 + 3641^2 .

It is not an unprimeable number, because it can be changed into a prime (131131337) 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, 1298280 + ... + 1298380.

Almost surely, 2^131131330 is an apocalyptic number.

131131330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131131330 is an abundant number, since it is smaller than the sum of its proper divisors (147242990).

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

131131330 is a wasteful number, since it uses less digits than its factorization.

131131330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 131131330 is about 11451.2588827604. The cubic root of 131131330 is about 508.0449693590.

Adding to 131131330 its reverse (33131131), we get a palindrome (164262461).

The spelling of 131131330 in words is "one hundred thirty-one million, one hundred thirty-one thousand, three hundred thirty".