20132420100 has 72 divisors (see below), whose sum is σ = 62730568320. Its totient is φ = 4955671680.

The previous prime is 20132420041. The next prime is 20132420129. The reversal of 20132420100 is 102423102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20132420100.

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, 2577180 + ... + 2584979.

Almost surely, 2^20132420100 is an apocalyptic number.

20132420100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20132420100 is an abundant number, since it is smaller than the sum of its proper divisors (42598148220).

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

20132420100 is a wasteful number, since it uses less digits than its factorization.

20132420100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5162189 (or 5162182 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20132420100 its reverse (102423102), we get a palindrome (20234843202).

The spelling of 20132420100 in words is "twenty billion, one hundred thirty-two million, four hundred twenty thousand, one hundred".