201231300 has 72 divisors (see below), whose sum is σ = 592149600. Its totient is φ = 52747520.

The previous prime is 201231269. The next prime is 201231307. The reversal of 201231300 is 3132102.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (201231307) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 12016 + ... + 23384.

It is an arithmetic number, because the mean of its divisors is an integer number (8224300).

Almost surely, 2^201231300 is an apocalyptic number.

201231300 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 201231300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296074800).

201231300 is an abundant number, since it is smaller than the sum of its proper divisors (390918300).

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

201231300 is a wasteful number, since it uses less digits than its factorization.

201231300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11445 (or 11438 counting only the distinct ones).

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

The square root of 201231300 is about 14185.6018554025. The cubic root of 201231300 is about 586.0012075441.

Adding to 201231300 its reverse (3132102), we get a palindrome (204363402).

The spelling of 201231300 in words is "two hundred one million, two hundred thirty-one thousand, three hundred".