2111504113 has 2 divisors, whose sum is σ = 2111504114. Its totient is φ = 2111504112.

The previous prime is 2111504099. The next prime is 2111504173. The reversal of 2111504113 is 3114051112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1336048704 + 775455409 = 36552^2 + 27847^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111504113 - 2¹⁷ = 2111373041 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111504173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055752056 + 1055752057.

It is an arithmetic number, because the mean of its divisors is an integer number (1055752057).

Almost surely, 2^2111504113 is an apocalyptic number.

It is an amenable number.

2111504113 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111504113 is an equidigital number, since it uses as much as digits as its factorization.

2111504113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 2111504113 is about 45951.1056776657. The cubic root of 2111504113 is about 1282.9133090767.

Adding to 2111504113 its reverse (3114051112), we get a palindrome (5225555225).

The spelling of 2111504113 in words is "two billion, one hundred eleven million, five hundred four thousand, one hundred thirteen".