20325205100 has 36 divisors (see below), whose sum is σ = 46700151624. Its totient is φ = 7651841280.

The previous prime is 20325205093. The next prime is 20325205111. The reversal of 20325205100 is 150252302.

It is a super-2 number, since 2×20325205100² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5976302 + ... + 5979701.

It is an arithmetic number, because the mean of its divisors is an integer number (1297226434).

Almost surely, 2^20325205100 is an apocalyptic number.

20325205100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20325205100 is an abundant number, since it is smaller than the sum of its proper divisors (26374946524).

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

20325205100 is a wasteful number, since it uses less digits than its factorization.

20325205100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11956034 (or 11956027 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 20325205100 its reverse (150252302), we get a palindrome (20475457402).

The spelling of 20325205100 in words is "twenty billion, three hundred twenty-five million, two hundred five thousand, one hundred".