20144102320 has 20 divisors (see below), whose sum is σ = 46835038080. Its totient is φ = 8057640896.

The previous prime is 20144102273. The next prime is 20144102339. The reversal of 20144102320 is 2320144102.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125900560 + ... + 125900719.

It is an arithmetic number, because the mean of its divisors is an integer number (2341751904).

Almost surely, 2^20144102320 is an apocalyptic number.

20144102320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20144102320 is an abundant number, since it is smaller than the sum of its proper divisors (26690935760).

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

20144102320 is a wasteful number, since it uses less digits than its factorization.

20144102320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251801292 (or 251801286 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20144102320 its reverse (2320144102), we get a palindrome (22464246422).

The spelling of 20144102320 in words is "twenty billion, one hundred forty-four million, one hundred two thousand, three hundred twenty".