2124241043921 has 2 divisors, whose sum is σ = 2124241043922. Its totient is φ = 2124241043920.

The previous prime is 2124241043893. The next prime is 2124241044001. The reversal of 2124241043921 is 1293401424212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2124073056400 + 167987521 = 1457420^2 + 12961^2 .

It is a cyclic number.

It is not a de Polignac number, because 2124241043921 - 2³⁴ = 2107061174737 is a prime.

It is not a weakly prime, because it can be changed into another prime (2124243043921) 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, 1062120521960 + 1062120521961.

It is an arithmetic number, because the mean of its divisors is an integer number (1062120521961).

Almost surely, 2^{2124241043921} is an apocalyptic number.

It is an amenable number.

2124241043921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124241043921 is an equidigital number, since it uses as much as digits as its factorization.

2124241043921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 2124241043921 in words is "two trillion, one hundred twenty-four billion, two hundred forty-one million, forty-three thousand, nine hundred twenty-one".