20112153312 has 192 divisors, whose sum is σ = 55564185600. Its totient is φ = 6361528320.

The previous prime is 20112153311. The next prime is 20112153317. The reversal of 20112153312 is 21335121102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112153311) 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 31 ways as a sum of consecutive naturals, for example, 57959923 + ... + 57960269.

It is an arithmetic number, because the mean of its divisors is an integer number (289396800).

Almost surely, 2^20112153312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112153312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27782092800).

20112153312 is an abundant number, since it is smaller than the sum of its proper divisors (35452032288).

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

20112153312 is a wasteful number, since it uses less digits than its factorization.

20112153312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 20112153312 its reverse (21335121102), we get a palindrome (41447274414).

The spelling of 20112153312 in words is "twenty billion, one hundred twelve million, one hundred fifty-three thousand, three hundred twelve".