121304430211 has 2 divisors, whose sum is σ = 121304430212. Its totient is φ = 121304430210.

The previous prime is 121304430133. The next prime is 121304430217. The reversal of 121304430211 is 112034403121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121304430211 is a prime.

It is not a weakly prime, because it can be changed into another prime (121304430217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60652215105 + 60652215106.

It is an arithmetic number, because the mean of its divisors is an integer number (60652215106).

Almost surely, 2^121304430211 is an apocalyptic number.

121304430211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121304430211 is an equidigital number, since it uses as much as digits as its factorization.

121304430211 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 121304430211 its reverse (112034403121), we get a palindrome (233338833332).

The spelling of 121304430211 in words is "one hundred twenty-one billion, three hundred four million, four hundred thirty thousand, two hundred eleven".