121116943 has 2 divisors, whose sum is σ = 121116944. Its totient is φ = 121116942.

The previous prime is 121116923. The next prime is 121116971. The reversal of 121116943 is 349611121.

It is an a-pointer prime, because the next prime (121116971) can be obtained adding 121116943 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121116943 - 2¹³ = 121108751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121116923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60558471 + 60558472.

It is an arithmetic number, because the mean of its divisors is an integer number (60558472).

Almost surely, 2^121116943 is an apocalyptic number.

121116943 is a deficient number, since it is larger than the sum of its proper divisors (1).

121116943 is an equidigital number, since it uses as much as digits as its factorization.

121116943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 28.

The square root of 121116943 is about 11005.3143071881. The cubic root of 121116943 is about 494.7680347009.

The spelling of 121116943 in words is "one hundred twenty-one million, one hundred sixteen thousand, nine hundred forty-three".