20033120100 has 72 divisors (see below), whose sum is σ = 66242857408. Its totient is φ = 4578998400.

The previous prime is 20033120069. The next prime is 20033120113. The reversal of 20033120100 is 102133002.

It is a happy number.

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

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, 4767691 + ... + 4771890.

Almost surely, 2^20033120100 is an apocalyptic number.

20033120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20033120100 is an abundant number, since it is smaller than the sum of its proper divisors (46209737308).

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

20033120100 is a wasteful number, since it uses less digits than its factorization.

20033120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9539605 (or 9539598 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20033120100 its reverse (102133002), we get a palindrome (20135253102).

The spelling of 20033120100 in words is "twenty billion, thirty-three million, one hundred twenty thousand, one hundred".