2112423455553 has 16 divisors (see below), whose sum is σ = 2849108064000. Its totient is φ = 1392077401344.

The previous prime is 2112423455447. The next prime is 2112423455561. The reversal of 2112423455553 is 3555543242112.

It is not a de Polignac number, because 2112423455553 - 2⁸ = 2112423455297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2112423455053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8226553 + ... + 8479446.

It is an arithmetic number, because the mean of its divisors is an integer number (178069254000).

Almost surely, 2^{2112423455553} is an apocalyptic number.

It is an amenable number.

2112423455553 is a deficient number, since it is larger than the sum of its proper divisors (736684608447).

2112423455553 is a wasteful number, since it uses less digits than its factorization.

2112423455553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16706488.

The product of its digits is 720000, while the sum is 42.

Adding to 2112423455553 its reverse (3555543242112), we get a palindrome (5667966697665).

The spelling of 2112423455553 in words is "two trillion, one hundred twelve billion, four hundred twenty-three million, four hundred fifty-five thousand, five hundred fifty-three".