20344342100 has 36 divisors (see below), whose sum is σ = 45571333248. Its totient is φ = 7875228000.

The previous prime is 20344342091. The next prime is 20344342103. The reversal of 20344342100 is 124344302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344342103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3278246 + ... + 3284445.

It is an arithmetic number, because the mean of its divisors is an integer number (1265870368).

Almost surely, 2^20344342100 is an apocalyptic number.

20344342100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20344342100 is an abundant number, since it is smaller than the sum of its proper divisors (25226991148).

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

20344342100 is a wasteful number, since it uses less digits than its factorization.

20344342100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6562736 (or 6562729 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20344342100 its reverse (124344302), we get a palindrome (20468686402).

The spelling of 20344342100 in words is "twenty billion, three hundred forty-four million, three hundred forty-two thousand, one hundred".