202130400204 has 144 divisors (see below), whose sum is σ = 540274032480. Its totient is φ = 63541739520.

The previous prime is 202130400203. The next prime is 202130400209. The reversal of 202130400204 is 402004031202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (202130400203) 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, 265611184 + ... + 265611944.

Almost surely, 2^202130400204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202130400204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270137016240).

202130400204 is an abundant number, since it is smaller than the sum of its proper divisors (338143632276).

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

202130400204 is a wasteful number, since it uses less digits than its factorization.

202130400204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040 (or 2035 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 202130400204 its reverse (402004031202), we get a palindrome (604134431406).

The spelling of 202130400204 in words is "two hundred two billion, one hundred thirty million, four hundred thousand, two hundred four".