2124455231321 has 2 divisors, whose sum is σ = 2124455231322. Its totient is φ = 2124455231320.

The previous prime is 2124455231257. The next prime is 2124455231369. The reversal of 2124455231321 is 1231325544212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2112429696400 + 12025534921 = 1453420^2 + 109661^2 .

It is a cyclic number.

It is not a de Polignac number, because 2124455231321 - 2⁶ = 2124455231257 is a prime.

It is not a weakly prime, because it can be changed into another prime (2124455230321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062227615660 + 1062227615661.

It is an arithmetic number, because the mean of its divisors is an integer number (1062227615661).

Almost surely, 2^{2124455231321} is an apocalyptic number.

It is an amenable number.

2124455231321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124455231321 is an equidigital number, since it uses as much as digits as its factorization.

2124455231321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 35.

The spelling of 2124455231321 in words is "two trillion, one hundred twenty-four billion, four hundred fifty-five million, two hundred thirty-one thousand, three hundred twenty-one".