121119811 has 2 divisors, whose sum is σ = 121119812. Its totient is φ = 121119810.

The previous prime is 121119797. The next prime is 121119829. The reversal of 121119811 is 118911121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121119811 is a prime.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (121119871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60559905 + 60559906.

It is an arithmetic number, because the mean of its divisors is an integer number (60559906).

Almost surely, 2^121119811 is an apocalyptic number.

121119811 is a deficient number, since it is larger than the sum of its proper divisors (1).

121119811 is an equidigital number, since it uses as much as digits as its factorization.

121119811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 25.

The square root of 121119811 is about 11005.4446071024. Note that the first 3 decimals coincide. The cubic root of 121119811 is about 494.7719399721.

The spelling of 121119811 in words is "one hundred twenty-one million, one hundred nineteen thousand, eight hundred eleven".