2112800051 has 4 divisors (see below), whose sum is σ = 2113059312. Its totient is φ = 2112540792.

The previous prime is 2112799993. The next prime is 2112800059. The reversal of 2112800051 is 1500082112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2112800051 - 2¹⁸ = 2112537907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112799996 and 2112800032.

It is not an unprimeable number, because it can be changed into a prime (2112800059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116996 + ... + 133841.

It is an arithmetic number, because the mean of its divisors is an integer number (528264828).

Almost surely, 2^2112800051 is an apocalyptic number.

2112800051 is a deficient number, since it is larger than the sum of its proper divisors (259261).

2112800051 is an equidigital number, since it uses as much as digits as its factorization.

2112800051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259260.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 2112800051 is about 45965.2047857942. The cubic root of 2112800051 is about 1283.1757185565.

Adding to 2112800051 its reverse (1500082112), we get a palindrome (3612882163).

The spelling of 2112800051 in words is "two billion, one hundred twelve million, eight hundred thousand, fifty-one".