20112344101321 has 16 divisors (see below), whose sum is σ = 21286677081600. Its totient is φ = 18971714044800.

The previous prime is 20112344101319. The next prime is 20112344101337. The reversal of 20112344101321 is 12310144321102.

It is not a de Polignac number, because 20112344101321 - 2¹ = 20112344101319 is a prime.

It is a super-2 number, since 2×20112344101321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112344201321) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5724831 + ... + 8543908.

It is an arithmetic number, because the mean of its divisors is an integer number (1330417317600).

Almost surely, 2^{20112344101321} is an apocalyptic number.

It is an amenable number.

20112344101321 is a deficient number, since it is larger than the sum of its proper divisors (1174332980279).

20112344101321 is a wasteful number, since it uses less digits than its factorization.

20112344101321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14269920.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 20112344101321 its reverse (12310144321102), we get a palindrome (32422488422423).

The spelling of 20112344101321 in words is "twenty trillion, one hundred twelve billion, three hundred forty-four million, one hundred one thousand, three hundred twenty-one".