20340341100 has 108 divisors (see below), whose sum is σ = 63998830896. Its totient is φ = 5403404160.

The previous prime is 20340341081. The next prime is 20340341171. The reversal of 20340341100 is 114304302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 193734 + ... + 279666.

Almost surely, 2^20340341100 is an apocalyptic number.

20340341100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20340341100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31999415448).

20340341100 is an abundant number, since it is smaller than the sum of its proper divisors (43658489796).

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

20340341100 is a wasteful number, since it uses less digits than its factorization.

20340341100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86216 (or 86206 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20340341100 its reverse (114304302), we get a palindrome (20454645402).

The spelling of 20340341100 in words is "twenty billion, three hundred forty million, three hundred forty-one thousand, one hundred".