20344101330 has 128 divisors (see below), whose sum is σ = 56926126080. Its totient is φ = 4557196800.

The previous prime is 20344101269. The next prime is 20344101347. The reversal of 20344101330 is 3310144302.

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

It is a junction number, because it is equal to n+sod(n) for n = 20344101297 and 20344101306.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2268355 + ... + 2277305.

It is an arithmetic number, because the mean of its divisors is an integer number (444735360).

Almost surely, 2^20344101330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20344101330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28463063040).

20344101330 is an abundant number, since it is smaller than the sum of its proper divisors (36582024750).

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

20344101330 is a wasteful number, since it uses less digits than its factorization.

20344101330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9184.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20344101330 its reverse (3310144302), we get a palindrome (23654245632).

The spelling of 20344101330 in words is "twenty billion, three hundred forty-four million, one hundred one thousand, three hundred thirty".