2130056671 has 4 divisors (see below), whose sum is σ = 2134430992. Its totient is φ = 2125682352.

The previous prime is 2130056653. The next prime is 2130056741. The reversal of 2130056671 is 1766500312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2130056671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130056371) 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, 2186430 + ... + 2187403.

It is an arithmetic number, because the mean of its divisors is an integer number (533607748).

Almost surely, 2^2130056671 is an apocalyptic number.

2130056671 is a deficient number, since it is larger than the sum of its proper divisors (4374321).

2130056671 is an equidigital number, since it uses as much as digits as its factorization.

2130056671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374320.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 2130056671 is about 46152.5369941892. The cubic root of 2130056671 is about 1286.6597620222.

Adding to 2130056671 its reverse (1766500312), we get a palindrome (3896556983).

The spelling of 2130056671 in words is "two billion, one hundred thirty million, fifty-six thousand, six hundred seventy-one".