121040343211 has 2 divisors, whose sum is σ = 121040343212. Its totient is φ = 121040343210.

The previous prime is 121040343209. The next prime is 121040343241. The reversal of 121040343211 is 112343040121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121040343211 - 2¹ = 121040343209 is a prime.

Together with 121040343209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (121040343241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60520171605 + 60520171606.

It is an arithmetic number, because the mean of its divisors is an integer number (60520171606).

Almost surely, 2^121040343211 is an apocalyptic number.

121040343211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121040343211 is an equidigital number, since it uses as much as digits as its factorization.

121040343211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 121040343211 its reverse (112343040121), we get a palindrome (233383383332).

The spelling of 121040343211 in words is "one hundred twenty-one billion, forty million, three hundred forty-three thousand, two hundred eleven".