131231300 has 72 divisors (see below), whose sum is σ = 292960416. Its totient is φ = 51010560.

The previous prime is 131231299. The next prime is 131231323. The reversal of 131231300 is 3132131.

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, 805019 + ... + 805181.

Almost surely, 2^131231300 is an apocalyptic number.

131231300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131231300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146480208).

131231300 is an abundant number, since it is smaller than the sum of its proper divisors (161729116).

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

131231300 is a wasteful number, since it uses less digits than its factorization.

131231300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 131231300 is about 11455.6230734081. The cubic root of 131231300 is about 508.1740418809.

Adding to 131231300 its reverse (3132131), we get a palindrome (134363431).

The spelling of 131231300 in words is "one hundred thirty-one million, two hundred thirty-one thousand, three hundred".