131131230 has 16 divisors (see below), whose sum is σ = 314715024. Its totient is φ = 34968320.

The previous prime is 131131199. The next prime is 131131279. The reversal of 131131230 is 32131131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2185491 + ... + 2185550.

It is an arithmetic number, because the mean of its divisors is an integer number (19669689).

Almost surely, 2^131131230 is an apocalyptic number.

131131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131131230 is an abundant number, since it is smaller than the sum of its proper divisors (183583794).

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

131131230 is a wasteful number, since it uses less digits than its factorization.

131131230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4371051.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 131131230 is about 11451.2545164274. The cubic root of 131131230 is about 508.0448402149.

Adding to 131131230 its reverse (32131131), we get a palindrome (163262361).

Subtracting from 131131230 its reverse (32131131), we obtain a palindrome (99000099).

The spelling of 131131230 in words is "one hundred thirty-one million, one hundred thirty-one thousand, two hundred thirty".