201331380 has 48 divisors (see below), whose sum is σ = 569326464. Its totient is φ = 53155200.

The previous prime is 201331343. The next prime is 201331399. The reversal of 201331380 is 83133102.

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 15 ways as a sum of consecutive naturals, for example, 10552 + ... + 22671.

It is an arithmetic number, because the mean of its divisors is an integer number (11860968).

Almost surely, 2^201331380 is an apocalyptic number.

201331380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201331380 is an abundant number, since it is smaller than the sum of its proper divisors (367995084).

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

201331380 is a wasteful number, since it uses less digits than its factorization.

201331380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33336 (or 33334 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 201331380 is about 14189.1289373238. The cubic root of 201331380 is about 586.0983383600.

Adding to 201331380 its reverse (83133102), we get a palindrome (284464482).

The spelling of 201331380 in words is "two hundred one million, three hundred thirty-one thousand, three hundred eighty".