2113104421 has 2 divisors, whose sum is σ = 2113104422. Its totient is φ = 2113104420.

The previous prime is 2113104391. The next prime is 2113104439. The reversal of 2113104421 is 1244013112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1567368100 + 545736321 = 39590^2 + 23361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113104421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113104451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056552210 + 1056552211.

It is an arithmetic number, because the mean of its divisors is an integer number (1056552211).

Almost surely, 2^2113104421 is an apocalyptic number.

It is an amenable number.

2113104421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113104421 is an equidigital number, since it uses as much as digits as its factorization.

2113104421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2113104421 is about 45968.5155405306. The cubic root of 2113104421 is about 1283.2373337009.

Adding to 2113104421 its reverse (1244013112), we get a palindrome (3357117533).

The spelling of 2113104421 in words is "two billion, one hundred thirteen million, one hundred four thousand, four hundred twenty-one".