20109823843024 has 40 divisors (see below), whose sum is σ = 40657653368640. Its totient is φ = 9617544169728.

The previous prime is 20109823843019. The next prime is 20109823843037. The reversal of 20109823843024 is 42034832890102.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18220519 + ... + 19292665.

It is an arithmetic number, because the mean of its divisors is an integer number (1016441334216).

Almost surely, 2^{20109823843024} is an apocalyptic number.

It is an amenable number.

20109823843024 is an abundant number, since it is smaller than the sum of its proper divisors (20547829525616).

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

20109823843024 is a wasteful number, since it uses less digits than its factorization.

20109823843024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123147 (or 1123141 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 20109823843024 in words is "twenty trillion, one hundred nine billion, eight hundred twenty-three million, eight hundred forty-three thousand, twenty-four".