20112320103232 has 112 divisors (see below), whose sum is σ = 48051521351680. Its totient is φ = 8159266598400.

The previous prime is 20112320103223. The next prime is 20112320103257. The reversal of 20112320103232 is 23230102321102.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9518557 + ... + 11437987.

It is an arithmetic number, because the mean of its divisors is an integer number (429031440640).

Almost surely, 2^{20112320103232} 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 20112320103232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24025760675840).

20112320103232 is an abundant number, since it is smaller than the sum of its proper divisors (27939201248448).

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

20112320103232 is a wasteful number, since it uses less digits than its factorization.

20112320103232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920700 (or 1920690 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20112320103232 its reverse (23230102321102), we get a palindrome (43342422424334).

The spelling of 20112320103232 in words is "twenty trillion, one hundred twelve billion, three hundred twenty million, one hundred three thousand, two hundred thirty-two".