201021023300 has 18 divisors (see below), whose sum is σ = 436215620778. Its totient is φ = 80408409280.

The previous prime is 201021023279. The next prime is 201021023311. The reversal of 201021023300 is 3320120102.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1455117316 + 199565905984 = 38146^2 + 446728^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1005105017 + ... + 1005105216.

Almost surely, 2^201021023300 is an apocalyptic number.

201021023300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201021023300 is an abundant number, since it is smaller than the sum of its proper divisors (235194597478).

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

201021023300 is a wasteful number, since it uses less digits than its factorization.

201021023300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010210247 (or 2010210240 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 201021023300 its reverse (3320120102), we get a palindrome (204341143402).

The spelling of 201021023300 in words is "two hundred one billion, twenty-one million, twenty-three thousand, three hundred".