121012111102243 has 2 divisors, whose sum is σ = 121012111102244. Its totient is φ = 121012111102242.

The previous prime is 121012111102213. The next prime is 121012111102279. The reversal of 121012111102243 is 342201111210121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121012111102243 - 2³³ = 121003521167651 is a prime.

It is not a weakly prime, because it can be changed into another prime (121012111102213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506055551121 + 60506055551122.

It is an arithmetic number, because the mean of its divisors is an integer number (60506055551122).

Almost surely, 2^{121012111102243} is an apocalyptic number.

121012111102243 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012111102243 is an equidigital number, since it uses as much as digits as its factorization.

121012111102243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 121012111102243 its reverse (342201111210121), we get a palindrome (463213222312364).

The spelling of 121012111102243 in words is "one hundred twenty-one trillion, twelve billion, one hundred eleven million, one hundred two thousand, two hundred forty-three".