2215314311 has 4 divisors (see below), whose sum is σ = 2531787792. Its totient is φ = 1898840832.

The previous prime is 2215314293. The next prime is 2215314313. The reversal of 2215314311 is 1134135122.

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

It is a de Polignac number, because none of the positive numbers 2^k-2215314311 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 (2215314313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158236730 + ... + 158236743.

It is an arithmetic number, because the mean of its divisors is an integer number (632946948).

Almost surely, 2^2215314311 is an apocalyptic number.

2215314311 is a deficient number, since it is larger than the sum of its proper divisors (316473481).

2215314311 is an equidigital number, since it uses as much as digits as its factorization.

2215314311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316473480.

The product of its digits is 720, while the sum is 23.

The square root of 2215314311 is about 47067.1255867617. The cubic root of 2215314311 is about 1303.6022989506.

Adding to 2215314311 its reverse (1134135122), we get a palindrome (3349449433).

The spelling of 2215314311 in words is "two billion, two hundred fifteen million, three hundred fourteen thousand, three hundred eleven".