20020011312112 has 80 divisors (see below), whose sum is σ = 45431844175872. Its totient is φ = 8366939389440.

The previous prime is 20020011312073. The next prime is 20020011312137. The reversal of 20020011312112 is 21121311002002.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 9146833 + ... + 11122255.

Almost surely, 2^{20020011312112} 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 20020011312112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22715922087936).

20020011312112 is an abundant number, since it is smaller than the sum of its proper divisors (25411832863760).

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

20020011312112 is a wasteful number, since it uses less digits than its factorization.

20020011312112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977686 (or 1977680 counting only the distinct ones).

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

Adding to 20020011312112 its reverse (21121311002002), we get a palindrome (41141322314114).

The spelling of 20020011312112 in words is "twenty trillion, twenty billion, eleven million, three hundred twelve thousand, one hundred twelve".