20330223100 has 144 divisors (see below), whose sum is σ = 49479395616. Its totient is φ = 7186432000.

The previous prime is 20330223083. The next prime is 20330223131. The reversal of 20330223100 is 132203302.

It is a super-2 number, since 2×20330223100² (a number of 21 digits) contains 22 as substring.

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, 15919662 + ... + 15920938.

It is an arithmetic number, because the mean of its divisors is an integer number (343606914).

Almost surely, 2^20330223100 is an apocalyptic number.

20330223100 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 20330223100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24739697808).

20330223100 is an abundant number, since it is smaller than the sum of its proper divisors (29149172516).

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

20330223100 is a wasteful number, since it uses less digits than its factorization.

20330223100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696 (or 1689 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20330223100 its reverse (132203302), we get a palindrome (20462426402).

The spelling of 20330223100 in words is "twenty billion, three hundred thirty million, two hundred twenty-three thousand, one hundred".