2111317 has 12 divisors (see below), whose sum is σ = 2363340. Its totient is φ = 1886040.

The previous prime is 2111311. The next prime is 2111321. The reversal of 2111317 is 7131112.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 77841 + 2033476 = 279^2 + 1426^2 .

It is not a de Polignac number, because 2111317 - 2³ = 2111309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2111317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68092 + ... + 68122.

It is an arithmetic number, because the mean of its divisors is an integer number (196945).

2^2111317 is an apocalyptic number.

It is an amenable number.

2111317 is a deficient number, since it is larger than the sum of its proper divisors (252023).

2111317 is an frugal number, since it uses more digits than its factorization.

2111317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 44 counting only the distinct ones).

The product of its digits is 42, while the sum is 16.

The square root of 2111317 is about 1453.0371640120. The cubic root of 2111317 is about 128.2875412418.

Adding to 2111317 its reverse (7131112), we get a palindrome (9242429).

The spelling of 2111317 in words is "two million, one hundred eleven thousand, three hundred seventeen".