20112113123321 has 8 divisors (see below), whose sum is σ = 20324484633024. Its totient is φ = 19900070619120.

The previous prime is 20112113123303. The next prime is 20112113123353. The reversal of 20112113123321 is 12332131121102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20112113123321 - 2⁶ = 20112113123257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112113126321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82128470 + ... + 82372991.

It is an arithmetic number, because the mean of its divisors is an integer number (2540560579128).

Almost surely, 2^{20112113123321} is an apocalyptic number.

It is an amenable number.

20112113123321 is a deficient number, since it is larger than the sum of its proper divisors (212371509703).

20112113123321 is a wasteful number, since it uses less digits than its factorization.

20112113123321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164502751.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 20112113123321 its reverse (12332131121102), we get a palindrome (32444244244423).

The spelling of 20112113123321 in words is "twenty trillion, one hundred twelve billion, one hundred thirteen million, one hundred twenty-three thousand, three hundred twenty-one".