2117270811 has 16 divisors (see below), whose sum is σ = 2844783360. Its totient is φ = 1400656800.

The previous prime is 2117270809. The next prime is 2117270861. The reversal of 2117270811 is 1180727112.

It is not a de Polignac number, because 2117270811 - 2¹ = 2117270809 is a prime.

It is a super-2 number, since 2×2117270811² = 8965671374225195442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2117270861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554836 + ... + 558638.

It is an arithmetic number, because the mean of its divisors is an integer number (177798960).

Almost surely, 2^2117270811 is an apocalyptic number.

2117270811 is a deficient number, since it is larger than the sum of its proper divisors (727512549).

2117270811 is a wasteful number, since it uses less digits than its factorization.

2117270811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5186.

The product of its (nonzero) digits is 1568, while the sum is 30.

The square root of 2117270811 is about 46013.8110897152. The cubic root of 2117270811 is about 1284.0801627197.

Adding to 2117270811 its reverse (1180727112), we get a palindrome (3297997923).

The spelling of 2117270811 in words is "two billion, one hundred seventeen million, two hundred seventy thousand, eight hundred eleven".