131312200 has 24 divisors (see below), whose sum is σ = 305301330. Its totient is φ = 52524800.

The previous prime is 131312177. The next prime is 131312201. The reversal of 131312200 is 2213131.

It can be written as a sum of positive squares in 3 ways, for example, as 101566084 + 29746116 = 10078^2 + 5454^2 .

It is not an unprimeable number, because it can be changed into a prime (131312201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 328081 + ... + 328480.

Almost surely, 2^131312200 is an apocalyptic number.

131312200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131312200 is an abundant number, since it is smaller than the sum of its proper divisors (173989130).

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

131312200 is a wasteful number, since it uses less digits than its factorization.

131312200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656577 (or 656568 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 131312200 is about 11459.1535464012. The cubic root of 131312200 is about 508.2784449081.

Adding to 131312200 its reverse (2213131), we get a palindrome (133525331).

The spelling of 131312200 in words is "one hundred thirty-one million, three hundred twelve thousand, two hundred".