20030322100 has 18 divisors (see below), whose sum is σ = 43465799174. Its totient is φ = 8012128800.

The previous prime is 20030322089. The next prime is 20030322161. The reversal of 20030322100 is 122303002.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2397669156 + 17632652944 = 48966^2 + 132788^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100151511 + ... + 100151710.

Almost surely, 2^20030322100 is an apocalyptic number.

20030322100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20030322100 is an abundant number, since it is smaller than the sum of its proper divisors (23435477074).

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

20030322100 is a wasteful number, since it uses less digits than its factorization.

20030322100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200303235 (or 200303228 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20030322100 its reverse (122303002), we get a palindrome (20152625102).

The spelling of 20030322100 in words is "twenty billion, thirty million, three hundred twenty-two thousand, one hundred".