131312230 has 32 divisors (see below), whose sum is σ = 284348160. Its totient is φ = 42651360.

The previous prime is 131312227. The next prime is 131312243. The reversal of 131312230 is 32213131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48036 + ... + 50695.

It is an arithmetic number, because the mean of its divisors is an integer number (8885880).

Almost surely, 2^131312230 is an apocalyptic number.

131312230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131312230 is an abundant number, since it is smaller than the sum of its proper divisors (153035930).

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

131312230 is a wasteful number, since it uses less digits than its factorization.

131312230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98764.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131312230 is about 11459.1548553984. The cubic root of 131312230 is about 508.2784836157.

Adding to 131312230 its reverse (32213131), we get a palindrome (163525361).

Subtracting from 131312230 its reverse (32213131), we obtain a palindrome (99099099).

The spelling of 131312230 in words is "one hundred thirty-one million, three hundred twelve thousand, two hundred thirty".