121673309941 has 4 divisors (see below), whose sum is σ = 121674016800. Its totient is φ = 121672603084.

The previous prime is 121673309909. The next prime is 121673309977. The reversal of 121673309941 is 149903376121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 149903376121 = 149251 ⋅1004371.

It is a cyclic number.

It is not a de Polignac number, because 121673309941 - 2⁵ = 121673309909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121673309891 and 121673309900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121673309981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91350 + ... + 501688.

It is an arithmetic number, because the mean of its divisors is an integer number (30418504200).

Almost surely, 2^121673309941 is an apocalyptic number.

It is an amenable number.

121673309941 is a deficient number, since it is larger than the sum of its proper divisors (706859).

121673309941 is an equidigital number, since it uses as much as digits as its factorization.

121673309941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706858.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 121673309941 in words is "one hundred twenty-one billion, six hundred seventy-three million, three hundred nine thousand, nine hundred forty-one".