2120279571 has 20 divisors (see below), whose sum is σ = 3205501992. Its totient is φ = 1396484928.

The previous prime is 2120279537. The next prime is 2120279573. The reversal of 2120279571 is 1759720212.

2120279571 is a `hidden beast` number, since 2 + 12 + 0 + 2 + 79 + 571 = 666.

2120279571 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2120279571 - 2⁶ = 2120279507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120279573) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 150966 + ... + 164411.

Almost surely, 2^2120279571 is an apocalyptic number.

2120279571 is a deficient number, since it is larger than the sum of its proper divisors (1085222421).

2120279571 is an equidigital number, since it uses as much as digits as its factorization.

2120279571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315472 (or 315463 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 2120279571 is about 46046.4935798590. The cubic root of 2120279571 is about 1284.6881246891.

Adding to 2120279571 its reverse (1759720212), we get a palindrome (3879999783).

The spelling of 2120279571 in words is "two billion, one hundred twenty million, two hundred seventy-nine thousand, five hundred seventy-one".