121330846161 has 40 divisors (see below), whose sum is σ = 209040258240. Its totient is φ = 68695804512.

The previous prime is 121330846151. The next prime is 121330846181. The reversal of 121330846161 is 161648033121.

121330846161 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 30 + 8 + 4 + 616 + 1 = 666.

It is not a de Polignac number, because 121330846161 - 2⁵ = 121330846129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121330846151) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 919791 + ... + 1043396.

It is an arithmetic number, because the mean of its divisors is an integer number (5226006456).

Almost surely, 2^121330846161 is an apocalyptic number.

It is an amenable number.

121330846161 is a deficient number, since it is larger than the sum of its proper divisors (87709412079).

121330846161 is a wasteful number, since it uses less digits than its factorization.

121330846161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963315 (or 1963306 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

Adding to 121330846161 its reverse (161648033121), we get a palindrome (282978879282).

The spelling of 121330846161 in words is "one hundred twenty-one billion, three hundred thirty million, eight hundred forty-six thousand, one hundred sixty-one".