20323144240044 has 12 divisors (see below), whose sum is σ = 47420669893464. Its totient is φ = 6774381413344.

The previous prime is 20323144239973. The next prime is 20323144240093. The reversal of 20323144240044 is 44004244132302.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20323144240044² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20323144239987 and 20323144240014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 846797676657 + ... + 846797676680.

It is an arithmetic number, because the mean of its divisors is an integer number (3951722491122).

Almost surely, 2^{20323144240044} is an apocalyptic number.

It is an amenable number.

20323144240044 is an abundant number, since it is smaller than the sum of its proper divisors (27097525653420).

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

20323144240044 is a wasteful number, since it uses less digits than its factorization.

20323144240044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693595353344 (or 1693595353342 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 20323144240044 its reverse (44004244132302), we get a palindrome (64327388372346).

The spelling of 20323144240044 in words is "twenty trillion, three hundred twenty-three billion, one hundred forty-four million, two hundred forty thousand, forty-four".