20002032100 has 36 divisors (see below), whose sum is σ = 43535612848. Its totient is φ = 7976628000.

The previous prime is 20002032079. The next prime is 20002032109. The reversal of 20002032100 is 123020002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (20002032109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269046 + ... + 335245.

Almost surely, 2^20002032100 is an apocalyptic number.

20002032100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002032100 is an abundant number, since it is smaller than the sum of its proper divisors (23533580748).

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

20002032100 is a wasteful number, since it uses less digits than its factorization.

20002032100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604636 (or 604629 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 20002032100 its reverse (123020002), we get a palindrome (20125052102).

The spelling of 20002032100 in words is "twenty billion, two million, thirty-two thousand, one hundred".