121116029 has 2 divisors, whose sum is σ = 121116030. Its totient is φ = 121116028.

The previous prime is 121115987. The next prime is 121116031. The reversal of 121116029 is 920611121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112572100 + 8543929 = 10610^2 + 2923^2 .

It is an emirp because it is prime and its reverse (920611121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121116029 - 2¹⁶ = 121050493 is a prime.

Together with 121116031, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 121115995 and 121116013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121116529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60558014 + 60558015.

It is an arithmetic number, because the mean of its divisors is an integer number (60558015).

Almost surely, 2^121116029 is an apocalyptic number.

It is an amenable number.

121116029 is a deficient number, since it is larger than the sum of its proper divisors (1).

121116029 is an equidigital number, since it uses as much as digits as its factorization.

121116029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 121116029 is about 11005.2727817170. The cubic root of 121116029 is about 494.7667901210.

The spelling of 121116029 in words is "one hundred twenty-one million, one hundred sixteen thousand, twenty-nine".