2112320544643 has 2 divisors, whose sum is σ = 2112320544644. Its totient is φ = 2112320544642.

The previous prime is 2112320544599. The next prime is 2112320544667. The reversal of 2112320544643 is 3464450232112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2112320544643 - 2²⁵ = 2112286990211 is a prime.

It is not a weakly prime, because it can be changed into another prime (2112320544673) 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, 1056160272321 + 1056160272322.

It is an arithmetic number, because the mean of its divisors is an integer number (1056160272322).

Almost surely, 2^{2112320544643} is an apocalyptic number.

2112320544643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112320544643 is an equidigital number, since it uses as much as digits as its factorization.

2112320544643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 2112320544643 its reverse (3464450232112), we get a palindrome (5576770776755).

The spelling of 2112320544643 in words is "two trillion, one hundred twelve billion, three hundred twenty million, five hundred forty-four thousand, six hundred forty-three".