20135313200 has 120 divisors (see below), whose sum is σ = 51710502816. Its totient is φ = 7515904000.

The previous prime is 20135313199. The next prime is 20135313277. The reversal of 20135313200 is 231353102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350510 + ... + 403890.

Almost surely, 2^20135313200 is an apocalyptic number.

20135313200 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 20135313200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25855251408).

20135313200 is an abundant number, since it is smaller than the sum of its proper divisors (31575189616).

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

20135313200 is a wasteful number, since it uses less digits than its factorization.

20135313200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53463 (or 53452 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 20135313200 its reverse (231353102), we get a palindrome (20366666302).

The spelling of 20135313200 in words is "twenty billion, one hundred thirty-five million, three hundred thirteen thousand, two hundred".