20333100000 has 144 divisors (see below), whose sum is σ = 66714698736. Its totient is φ = 5422080000.

The previous prime is 20333099999. The next prime is 20333100001. The reversal of 20333100000 is 133302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20333099999) and next prime (20333100001).

It is a super-2 number, since 2×20333100000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333100001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266112 + ... + 333888.

It is an arithmetic number, because the mean of its divisors is an integer number (463296519).

Almost surely, 2^20333100000 is an apocalyptic number.

20333100000 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 20333100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33357349368).

20333100000 is an abundant number, since it is smaller than the sum of its proper divisors (46381598736).

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

20333100000 is an frugal number, since it uses more digits than its factorization.

20333100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67815 (or 67787 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

Adding to 20333100000 its reverse (133302), we get a palindrome (20333233302).

The spelling of 20333100000 in words is "twenty billion, three hundred thirty-three million, one hundred thousand".