2112121043293 has 2 divisors, whose sum is σ = 2112121043294. Its totient is φ = 2112121043292.

The previous prime is 2112121043273. The next prime is 2112121043377. The reversal of 2112121043293 is 3923401212112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1470779541049 + 641341502244 = 1212757^2 + 800838^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112121043293 - 2¹⁷ = 2112120912221 is a prime.

It is a super-3 number, since 3×2112121043293³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112121043233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056060521646 + 1056060521647.

It is an arithmetic number, because the mean of its divisors is an integer number (1056060521647).

Almost surely, 2^{2112121043293} is an apocalyptic number.

It is an amenable number.

2112121043293 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112121043293 is an equidigital number, since it uses as much as digits as its factorization.

2112121043293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 2112121043293 in words is "two trillion, one hundred twelve billion, one hundred twenty-one million, forty-three thousand, two hundred ninety-three".