20111112121332 has 12 divisors (see below), whose sum is σ = 46925928283136. Its totient is φ = 6703704040440.

The previous prime is 20111112121297. The next prime is 20111112121381. The reversal of 20111112121332 is 23312121111102.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20111112121299 and 20111112121308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837963005044 + ... + 837963005067.

Almost surely, 2^{20111112121332} is an apocalyptic number.

It is an amenable number.

20111112121332 is an abundant number, since it is smaller than the sum of its proper divisors (26814816161804).

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

20111112121332 is a wasteful number, since it uses less digits than its factorization.

20111112121332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675926010118 (or 1675926010116 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 20111112121332 its reverse (23312121111102), we get a palindrome (43423233232434).

The spelling of 20111112121332 in words is "twenty trillion, one hundred eleven billion, one hundred twelve million, one hundred twenty-one thousand, three hundred thirty-two".