2120554543 has 2 divisors, whose sum is σ = 2120554544. Its totient is φ = 2120554542.

The previous prime is 2120554519. The next prime is 2120554573. The reversal of 2120554543 is 3454550212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120554543 - 2²¹ = 2118457391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120554573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060277271 + 1060277272.

It is an arithmetic number, because the mean of its divisors is an integer number (1060277272).

Almost surely, 2^2120554543 is an apocalyptic number.

2120554543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120554543 is an equidigital number, since it uses as much as digits as its factorization.

2120554543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2120554543 is about 46049.4792913014. The cubic root of 2120554543 is about 1284.7436579307.

The spelling of 2120554543 in words is "two billion, one hundred twenty million, five hundred fifty-four thousand, five hundred forty-three".