20031104352 has 144 divisors (see below), whose sum is σ = 64764690480. Its totient is φ = 5386493952.

The previous prime is 20031104351. The next prime is 20031104371. The reversal of 20031104352 is 25340113002.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031104351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45277 + ... + 205212.

It is an arithmetic number, because the mean of its divisors is an integer number (449754795).

Almost surely, 2^20031104352 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 20031104352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32382345240).

20031104352 is an abundant number, since it is smaller than the sum of its proper divisors (44733586128).

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

20031104352 is a wasteful number, since it uses less digits than its factorization.

20031104352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250533 (or 250518 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20031104352 its reverse (25340113002), we get a palindrome (45371217354).

The spelling of 20031104352 in words is "twenty billion, thirty-one million, one hundred four thousand, three hundred fifty-two".