2171263115 has 32 divisors (see below), whose sum is σ = 3002880384. Its totient is φ = 1476357120.

The previous prime is 2171263109. The next prime is 2171263121. The reversal of 2171263115 is 5113621712.

It is an interprime number because it is at equal distance from previous prime (2171263109) and next prime (2171263121).

It is not a de Polignac number, because 2171263115 - 2⁴ = 2171263099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2723897 + ... + 2724693.

It is an arithmetic number, because the mean of its divisors is an integer number (93840012).

Almost surely, 2^2171263115 is an apocalyptic number.

2171263115 is a deficient number, since it is larger than the sum of its proper divisors (831617269).

2171263115 is a wasteful number, since it uses less digits than its factorization.

2171263115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367.

The product of its digits is 2520, while the sum is 29.

The square root of 2171263115 is about 46596.8144297440. The cubic root of 2171263115 is about 1294.9037390621.

Adding to 2171263115 its reverse (5113621712), we get a palindrome (7284884827).

The spelling of 2171263115 in words is "two billion, one hundred seventy-one million, two hundred sixty-three thousand, one hundred fifteen".