2118113 has 2 divisors, whose sum is σ = 2118114. Its totient is φ = 2118112.

The previous prime is 2118091. The next prime is 2118119. The reversal of 2118113 is 3118112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2007889 + 110224 = 1417^2 + 332^2 .

It is a cyclic number.

It is not a de Polignac number, because 2118113 - 2⁶ = 2118049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2118091 and 2118100.

It is not a weakly prime, because it can be changed into another prime (2118119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059056 + 1059057.

It is an arithmetic number, because the mean of its divisors is an integer number (1059057).

2^2118113 is an apocalyptic number.

It is an amenable number.

2118113 is a deficient number, since it is larger than the sum of its proper divisors (1).

2118113 is an equidigital number, since it uses as much as digits as its factorization.

2118113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 17.

The square root of 2118113 is about 1455.3738351365. The cubic root of 2118113 is about 128.4250396782.

Subtracting 2118113 from its reverse (3118112), we obtain a palindrome (999999).

The spelling of 2118113 in words is "two million, one hundred eighteen thousand, one hundred thirteen".