2113100023112 has 64 divisors (see below), whose sum is σ = 4294954707120. Its totient is φ = 968852671488.

The previous prime is 2113100023051. The next prime is 2113100023157. The reversal of 2113100023112 is 2113200013112.

It can be written as a sum of positive squares in 8 ways, for example, as 325942795396 + 1787157227716 = 570914^2 + 1336846^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93335858 + ... + 93358494.

Almost surely, 2^{2113100023112} 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 2113100023112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2147477353560).

2113100023112 is an abundant number, since it is smaller than the sum of its proper divisors (2181854684008).

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

2113100023112 is a wasteful number, since it uses less digits than its factorization.

2113100023112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28530 (or 28526 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 2113100023112 its reverse (2113200013112), we get a palindrome (4226300036224).

The spelling of 2113100023112 in words is "two trillion, one hundred thirteen billion, one hundred million, twenty-three thousand, one hundred twelve".