20100344320 has 80 divisors (see below), whose sum is σ = 55078581888. Its totient is φ = 6891540480.

The previous prime is 20100344317. The next prime is 20100344323. The reversal of 20100344320 is 2344300102.

It is an interprime number because it is at equal distance from previous prime (20100344317) and next prime (20100344323).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (20100344323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542916 + ... + 578755.

Almost surely, 2^20100344320 is an apocalyptic number.

20100344320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100344320 is an abundant number, since it is smaller than the sum of its proper divisors (34978237568).

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

20100344320 is an equidigital number, since it uses as much as digits as its factorization.

20100344320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121701 (or 1121685 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20100344320 its reverse (2344300102), we get a palindrome (22444644422).

The spelling of 20100344320 in words is "twenty billion, one hundred million, three hundred forty-four thousand, three hundred twenty".