131331100 has 18 divisors (see below), whose sum is σ = 284988704. Its totient is φ = 52532400.

The previous prime is 131331061. The next prime is 131331119. The reversal of 131331100 is 1133131.

It is a happy number.

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, 656556 + ... + 656755.

Almost surely, 2^131331100 is an apocalyptic number.

131331100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131331100 is an abundant number, since it is smaller than the sum of its proper divisors (153657604).

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

131331100 is a wasteful number, since it uses less digits than its factorization.

131331100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313325 (or 1313318 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 131331100 is about 11459.9781849705. The cubic root of 131331100 is about 508.3028295470.

Adding to 131331100 its reverse (1133131), we get a palindrome (132464231).

The spelling of 131331100 in words is "one hundred thirty-one million, three hundred thirty-one thousand, one hundred".