20013312113112 has 32 divisors (see below), whose sum is σ = 50034794258880. Its totient is φ = 6670902174240.

The previous prime is 20013312113099. The next prime is 20013312113129. The reversal of 20013312113112 is 21131121331002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11805738 + ... + 13394105.

It is an arithmetic number, because the mean of its divisors is an integer number (1563587320590).

Almost surely, 2^{20013312113112} is an apocalyptic number.

It is an amenable number.

20013312113112 is an abundant number, since it is smaller than the sum of its proper divisors (30021482145768).

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

20013312113112 is a wasteful number, since it uses less digits than its factorization.

20013312113112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25232943 (or 25232939 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 20013312113112 its reverse (21131121331002), we get a palindrome (41144433444114).

The spelling of 20013312113112 in words is "twenty trillion, thirteen billion, three hundred twelve million, one hundred thirteen thousand, one hundred twelve".