2120512827 has 4 divisors (see below), whose sum is σ = 2827350440. Its totient is φ = 1413675216.

The previous prime is 2120512819. The next prime is 2120512831. The reversal of 2120512827 is 7282150212.

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

It is not a de Polignac number, because 2120512827 - 2³ = 2120512819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120512794 and 2120512803.

It is not an unprimeable number, because it can be changed into a prime (2120512817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353418802 + ... + 353418807.

It is an arithmetic number, because the mean of its divisors is an integer number (706837610).

Almost surely, 2^2120512827 is an apocalyptic number.

2120512827 is a deficient number, since it is larger than the sum of its proper divisors (706837613).

2120512827 is an equidigital number, since it uses as much as digits as its factorization.

2120512827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706837612.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 2120512827 is about 46049.0263414983. The cubic root of 2120512827 is about 1284.7352332920.

The spelling of 2120512827 in words is "two billion, one hundred twenty million, five hundred twelve thousand, eight hundred twenty-seven".