131321200 has 30 divisors (see below), whose sum is σ = 315500144. Its totient is φ = 52528320.

The previous prime is 131321173. The next prime is 131321221. The reversal of 131321200 is 2123131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 163752 + ... + 164551.

Almost surely, 2^131321200 is an apocalyptic number.

131321200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131321200 is an abundant number, since it is smaller than the sum of its proper divisors (184178944).

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

131321200 is a wasteful number, since it uses less digits than its factorization.

131321200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328321 (or 328310 counting only the distinct ones).

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

The square root of 131321200 is about 11459.5462388351. The cubic root of 131321200 is about 508.2900569327.

Adding to 131321200 its reverse (2123131), we get a palindrome (133444331).

The spelling of 131321200 in words is "one hundred thirty-one million, three hundred twenty-one thousand, two hundred".