2121333104393 has 2 divisors, whose sum is σ = 2121333104394. Its totient is φ = 2121333104392.

The previous prime is 2121333104381. The next prime is 2121333104419. The reversal of 2121333104393 is 3934013331212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2121063093769 + 270010624 = 1456387^2 + 16432^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121333104393 - 2⁶ = 2121333104329 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121333104353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060666552196 + 1060666552197.

It is an arithmetic number, because the mean of its divisors is an integer number (1060666552197).

Almost surely, 2^{2121333104393} is an apocalyptic number.

It is an amenable number.

2121333104393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121333104393 is an equidigital number, since it uses as much as digits as its factorization.

2121333104393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 35.

The spelling of 2121333104393 in words is "two trillion, one hundred twenty-one billion, three hundred thirty-three million, one hundred four thousand, three hundred ninety-three".