20112033100 has 72 divisors (see below), whose sum is σ = 45160703280. Its totient is φ = 7769287680.

The previous prime is 20112033089. The next prime is 20112033127. The reversal of 20112033100 is 133021102.

It is a super-3 number, since 3×20112033100³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356424 + ... + 408976.

It is an arithmetic number, because the mean of its divisors is an integer number (627231990).

Almost surely, 2^20112033100 is an apocalyptic number.

20112033100 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 20112033100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22580351640).

20112033100 is an abundant number, since it is smaller than the sum of its proper divisors (25048670180).

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

20112033100 is a wasteful number, since it uses less digits than its factorization.

20112033100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52699 (or 52692 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20112033100 its reverse (133021102), we get a palindrome (20245054202).

The spelling of 20112033100 in words is "twenty billion, one hundred twelve million, thirty-three thousand, one hundred".