131232021300 has 108 divisors (see below), whose sum is σ = 412505746380. Its totient is φ = 34895984640.

The previous prime is 131232021293. The next prime is 131232021313. The reversal of 131232021300 is 3120232131.

131232021300 is a `hidden beast` number, since 1 + 312 + 32 + 0 + 21 + 300 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 11435735844 + 119796285456 = 106938^2 + 346116^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 111166 + ... + 524234.

Almost surely, 2^131232021300 is an apocalyptic number.

131232021300 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 131232021300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206252873190).

131232021300 is an abundant number, since it is smaller than the sum of its proper divisors (281273725080).

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

131232021300 is a wasteful number, since it uses less digits than its factorization.

131232021300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413442 (or 413432 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 131232021300 its reverse (3120232131), we get a palindrome (134352253431).

The spelling of 131232021300 in words is "one hundred thirty-one billion, two hundred thirty-two million, twenty-one thousand, three hundred".