2120543573833 has 4 divisors (see below), whose sum is σ = 2120676948868. Its totient is φ = 2120410198800.

The previous prime is 2120543573807. The next prime is 2120543573903. The reversal of 2120543573833 is 3383753450212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1181247269904 + 939296303929 = 1086852^2 + 969173^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120543573833 - 2⁹ = 2120543573321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120543570833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66663666 + ... + 66695467.

It is an arithmetic number, because the mean of its divisors is an integer number (530169237217).

Almost surely, 2^{2120543573833} is an apocalyptic number.

It is an amenable number.

2120543573833 is a deficient number, since it is larger than the sum of its proper divisors (133375035).

2120543573833 is a wasteful number, since it uses less digits than its factorization.

2120543573833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133375034.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 2120543573833 in words is "two trillion, one hundred twenty billion, five hundred forty-three million, five hundred seventy-three thousand, eight hundred thirty-three".