121673443 has 2 divisors, whose sum is σ = 121673444. Its totient is φ = 121673442.

The previous prime is 121673441. The next prime is 121673477. The reversal of 121673443 is 344376121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121673443 - 2¹ = 121673441 is a prime.

Together with 121673441, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (121673441) 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, 60836721 + 60836722.

It is an arithmetic number, because the mean of its divisors is an integer number (60836722).

Almost surely, 2^121673443 is an apocalyptic number.

121673443 is a deficient number, since it is larger than the sum of its proper divisors (1).

121673443 is an equidigital number, since it uses as much as digits as its factorization.

121673443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 31.

The square root of 121673443 is about 11030.5685710212. The cubic root of 121673443 is about 495.5246527141.

The spelling of 121673443 in words is "one hundred twenty-one million, six hundred seventy-three thousand, four hundred forty-three".