20323400242144 has 48 divisors (see below), whose sum is σ = 40366909321200. Its totient is φ = 10071491799040.

The previous prime is 20323400242121. The next prime is 20323400242183. The reversal of 20323400242144 is 44124200432302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198615507 + ... + 198717805.

It is an arithmetic number, because the mean of its divisors is an integer number (840977277525).

Almost surely, 2^{20323400242144} is an apocalyptic number.

It is an amenable number.

20323400242144 is a deficient number, since it is larger than the sum of its proper divisors (20043509079056).

20323400242144 is a wasteful number, since it uses less digits than its factorization.

20323400242144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157363 (or 157355 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 20323400242144 its reverse (44124200432302), we get a palindrome (64447600674446).

The spelling of 20323400242144 in words is "twenty trillion, three hundred twenty-three billion, four hundred million, two hundred forty-two thousand, one hundred forty-four".