2112013123 has 8 divisors (see below), whose sum is σ = 2304423936. Its totient is φ = 1919670600.

The previous prime is 2112013117. The next prime is 2112013133. The reversal of 2112013123 is 3213102112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112013123 - 2⁵ = 2112013091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112013097 and 2112013106.

It is not an unprimeable number, because it can be changed into a prime (2112013133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64618 + ... + 91648.

It is an arithmetic number, because the mean of its divisors is an integer number (288052992).

Almost surely, 2^2112013123 is an apocalyptic number.

2112013123 is a deficient number, since it is larger than the sum of its proper divisors (192410813).

2112013123 is a wasteful number, since it uses less digits than its factorization.

2112013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34145.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2112013123 is about 45956.6439483999. The cubic root of 2112013123 is about 1283.0163893459.

Adding to 2112013123 its reverse (3213102112), we get a palindrome (5325115235).

It can be divided in two parts, 21120 and 13123, that added together give a palindrome (34243).

The spelling of 2112013123 in words is "two billion, one hundred twelve million, thirteen thousand, one hundred twenty-three".