131332230 has 48 divisors (see below), whose sum is σ = 347265360. Its totient is φ = 34426944.

The previous prime is 131332211. The next prime is 131332273. The reversal of 131332230 is 32233131.

131332230 is a `hidden beast` number, since 1 + 313 + 322 + 30 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7057 + ... + 17676.

It is an arithmetic number, because the mean of its divisors is an integer number (7234695).

Almost surely, 2^131332230 is an apocalyptic number.

131332230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131332230 is an abundant number, since it is smaller than the sum of its proper divisors (215933130).

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

131332230 is a wasteful number, since it uses less digits than its factorization.

131332230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24805 (or 24802 counting only the distinct ones).

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

The square root of 131332230 is about 11460.0274868780. The cubic root of 131332230 is about 508.3042873905.

Adding to 131332230 its reverse (32233131), we get a palindrome (163565361).

Subtracting from 131332230 its reverse (32233131), we obtain a palindrome (99099099).

The spelling of 131332230 in words is "one hundred thirty-one million, three hundred thirty-two thousand, two hundred thirty".