20100000032 has 96 divisors (see below), whose sum is σ = 45964558080. Its totient is φ = 8473973760.

The previous prime is 20099999981. The next prime is 20100000047. The reversal of 20100000032 is 23000000102.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 20099999965 and 20100000019.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8857394 + ... + 8859662.

It is an arithmetic number, because the mean of its divisors is an integer number (478797480).

Almost surely, 2^20100000032 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 20100000032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22982279040).

20100000032 is an abundant number, since it is smaller than the sum of its proper divisors (25864558048).

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

20100000032 is a wasteful number, since it uses less digits than its factorization.

20100000032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914 (or 2906 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

Adding to 20100000032 its reverse (23000000102), we get a palindrome (43100000134).

The spelling of 20100000032 in words is "twenty billion, one hundred million, thirty-two", and thus it is an aban number.