2113204430243 has 2 divisors, whose sum is σ = 2113204430244. Its totient is φ = 2113204430242.

The previous prime is 2113204430221. The next prime is 2113204430297. The reversal of 2113204430243 is 3420344023112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2113204430243 - 2¹⁸ = 2113204168099 is a prime.

It is a super-3 number, since 3×2113204430243³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2113204433243) 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, 1056602215121 + 1056602215122.

It is an arithmetic number, because the mean of its divisors is an integer number (1056602215122).

Almost surely, 2^{2113204430243} is an apocalyptic number.

2113204430243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113204430243 is an equidigital number, since it uses as much as digits as its factorization.

2113204430243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 2113204430243 its reverse (3420344023112), we get a palindrome (5533548453355).

The spelling of 2113204430243 in words is "two trillion, one hundred thirteen billion, two hundred four million, four hundred thirty thousand, two hundred forty-three".