121434776611 has 2 divisors, whose sum is σ = 121434776612. Its totient is φ = 121434776610.

The previous prime is 121434776599. The next prime is 121434776663. The reversal of 121434776611 is 116677434121.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (116677434121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121434776611 - 2⁷ = 121434776483 is a prime.

It is not a weakly prime, because it can be changed into another prime (121434576611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60717388305 + 60717388306.

It is an arithmetic number, because the mean of its divisors is an integer number (60717388306).

Almost surely, 2^121434776611 is an apocalyptic number.

121434776611 is a deficient number, since it is larger than the sum of its proper divisors (1).

121434776611 is an equidigital number, since it uses as much as digits as its factorization.

121434776611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 43.

The spelling of 121434776611 in words is "one hundred twenty-one billion, four hundred thirty-four million, seven hundred seventy-six thousand, six hundred eleven".