20032100032 has 70 divisors (see below), whose sum is σ = 46373994628. Its totient is φ = 8585119872.

The previous prime is 20032099979. The next prime is 20032100041. The reversal of 20032100032 is 23000123002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20032099985 and 20032100021.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 88483 + ... + 218845.

Almost surely, 2^20032100032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20032100032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23186997314).

20032100032 is an abundant number, since it is smaller than the sum of its proper divisors (26341894596).

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

20032100032 is an frugal number, since it uses more digits than its factorization.

20032100032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130403 (or 130372 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20032100032 its reverse (23000123002), we get a palindrome (43032223034).

The spelling of 20032100032 in words is "twenty billion, thirty-two million, one hundred thousand, thirty-two".