202131304380 has 144 divisors (see below), whose sum is σ = 631050061824. Its totient is φ = 52349109120.

The previous prime is 202131304373. The next prime is 202131304381. The reversal of 202131304380 is 83403131202.

202131304380 is a `hidden beast` number, since 2 + 0 + 213 + 13 + 0 + 438 + 0 = 666.

202131304380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202131304381) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 738229 + ... + 974291.

It is an arithmetic number, because the mean of its divisors is an integer number (4382292096).

Almost surely, 2^202131304380 is an apocalyptic number.

202131304380 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 202131304380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315525030912).

202131304380 is an abundant number, since it is smaller than the sum of its proper divisors (428918757444).

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

202131304380 is a wasteful number, since it uses less digits than its factorization.

202131304380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236216 (or 236211 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 202131304380 its reverse (83403131202), we get a palindrome (285534435582).

The spelling of 202131304380 in words is "two hundred two billion, one hundred thirty-one million, three hundred four thousand, three hundred eighty".