121081317 has 16 divisors (see below), whose sum is σ = 186410112. Its totient is φ = 68474880.

The previous prime is 121081297. The next prime is 121081321. The reversal of 121081317 is 713180121.

It is a happy number.

It is not a de Polignac number, because 121081317 - 2¹⁵ = 121048549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121081397) 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 15 ways as a sum of consecutive naturals, for example, 27684 + ... + 31757.

It is an arithmetic number, because the mean of its divisors is an integer number (11650632).

Almost surely, 2^121081317 is an apocalyptic number.

It is an amenable number.

121081317 is a deficient number, since it is larger than the sum of its proper divisors (65328795).

121081317 is an equidigital number, since it uses as much as digits as its factorization.

121081317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59548.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 121081317 is about 11003.6956064769. The cubic root of 121081317 is about 494.7195186851.

The spelling of 121081317 in words is "one hundred twenty-one million, eighty-one thousand, three hundred seventeen".