20135326200 has 192 divisors, whose sum is σ = 69678576000. Its totient is φ = 4767705600.

The previous prime is 20135326163. The next prime is 20135326217. The reversal of 20135326200 is 262353102.

It is a Cunningham number, because it is equal to 141899²-1.

It is a super-2 number, since 2×20135326200² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 248326 + ... + 319274.

It is an arithmetic number, because the mean of its divisors is an integer number (362909250).

Almost surely, 2^20135326200 is an apocalyptic number.

20135326200 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 20135326200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34839288000).

20135326200 is an abundant number, since it is smaller than the sum of its proper divisors (49543249800).

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

20135326200 is a wasteful number, since it uses less digits than its factorization.

20135326200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71022 (or 71013 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 20135326200 its reverse (262353102), we get a palindrome (20397679302).

The spelling of 20135326200 in words is "twenty billion, one hundred thirty-five million, three hundred twenty-six thousand, two hundred".