20344442401323 has 24 divisors (see below), whose sum is σ = 29613822151056. Its totient is φ = 13458026836800.

The previous prime is 20344442401319. The next prime is 20344442401343. The reversal of 20344442401323 is 32310424444302.

20344442401323 is a `hidden beast` number, since 2 + 0 + 3 + 44 + 442 + 40 + 132 + 3 = 666.

It is not a de Polignac number, because 20344442401323 - 2² = 20344442401319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20344442401343) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 10497261 + ... + 12283377.

It is an arithmetic number, because the mean of its divisors is an integer number (1233909256294).

Almost surely, 2^{20344442401323} is an apocalyptic number.

20344442401323 is a deficient number, since it is larger than the sum of its proper divisors (9269379749733).

20344442401323 is a wasteful number, since it uses less digits than its factorization.

20344442401323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795915 (or 1795912 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 20344442401323 its reverse (32310424444302), we get a palindrome (52654866845625).

The spelling of 20344442401323 in words is "twenty trillion, three hundred forty-four billion, four hundred forty-two million, four hundred one thousand, three hundred twenty-three".