200131320 has 128 divisors (see below), whose sum is σ = 627264000. Its totient is φ = 51018240.

The previous prime is 200131289. The next prime is 200131387. The reversal of 200131320 is 23131002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 200131296 and 200131305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 455661 + ... + 456099.

It is an arithmetic number, because the mean of its divisors is an integer number (4900500).

Almost surely, 2^200131320 is an apocalyptic number.

200131320 is a gapful number since it is divisible by the number (20) 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 200131320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313632000).

200131320 is an abundant number, since it is smaller than the sum of its proper divisors (427132680).

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

200131320 is a wasteful number, since it uses less digits than its factorization.

200131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 200131320 is about 14146.7777249803. Note that the first 4 decimals coincide. The cubic root of 200131320 is about 584.9315136423.

Adding to 200131320 its reverse (23131002), we get a palindrome (223262322).

The spelling of 200131320 in words is "two hundred million, one hundred thirty-one thousand, three hundred twenty".