20112321112 has 64 divisors (see below), whose sum is σ = 43744296960. Its totient is φ = 8592566400.

The previous prime is 20112321101. The next prime is 20112321167. The reversal of 20112321112 is 21112321102.

It is a congruent number.

It is an unprimeable number.

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, 61464 + ... + 209767.

It is an arithmetic number, because the mean of its divisors is an integer number (683504640).

Almost surely, 2^20112321112 is an apocalyptic number.

It is an amenable number.

20112321112 is an abundant number, since it is smaller than the sum of its proper divisors (23631975848).

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

20112321112 is a wasteful number, since it uses less digits than its factorization.

20112321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271304 (or 271300 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20112321112 its reverse (21112321102), we get a palindrome (41224642214).

The spelling of 20112321112 in words is "twenty billion, one hundred twelve million, three hundred twenty-one thousand, one hundred twelve".