2111634236443 has 2 divisors, whose sum is σ = 2111634236444. Its totient is φ = 2111634236442.

The previous prime is 2111634236431. The next prime is 2111634236447. The reversal of 2111634236443 is 3446324361112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111634236443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111634236396 and 2111634236405.

It is not a weakly prime, because it can be changed into another prime (2111634236447) 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, 1055817118221 + 1055817118222.

It is an arithmetic number, because the mean of its divisors is an integer number (1055817118222).

Almost surely, 2^{2111634236443} is an apocalyptic number.

2111634236443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111634236443 is an equidigital number, since it uses as much as digits as its factorization.

2111634236443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 40.

Adding to 2111634236443 its reverse (3446324361112), we get a palindrome (5557958597555).

The spelling of 2111634236443 in words is "two trillion, one hundred eleven billion, six hundred thirty-four million, two hundred thirty-six thousand, four hundred forty-three".