121081740117 has 64 divisors (see below), whose sum is σ = 187548721920. Its totient is φ = 68818489344.

The previous prime is 121081740053. The next prime is 121081740127. The reversal of 121081740117 is 711047180121.

It is not a de Polignac number, because 121081740117 - 2⁶ = 121081740053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121081740127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11944183 + ... + 11954315.

It is an arithmetic number, because the mean of its divisors is an integer number (2930448780).

Almost surely, 2^121081740117 is an apocalyptic number.

121081740117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

121081740117 is a deficient number, since it is larger than the sum of its proper divisors (66466981803).

121081740117 is a wasteful number, since it uses less digits than its factorization.

121081740117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10502.

The product of its (nonzero) digits is 3136, while the sum is 33.

The spelling of 121081740117 in words is "one hundred twenty-one billion, eighty-one million, seven hundred forty thousand, one hundred seventeen".