121330517 has 24 divisors (see below), whose sum is σ = 155027232. Its totient is φ = 93895200.

The previous prime is 121330493. The next prime is 121330529. The reversal of 121330517 is 715033121.

It is not a de Polignac number, because 121330517 - 2¹⁴ = 121314133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121330492 and 121330501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121330537) 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 23 ways as a sum of consecutive naturals, for example, 87167 + ... + 88547.

It is an arithmetic number, because the mean of its divisors is an integer number (6459468).

Almost surely, 2^121330517 is an apocalyptic number.

It is an amenable number.

121330517 is a deficient number, since it is larger than the sum of its proper divisors (33696715).

121330517 is a wasteful number, since it uses less digits than its factorization.

121330517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 121330517 is about 11015.0132546448. The cubic root of 121330517 is about 495.0586836524.

Adding to 121330517 its reverse (715033121), we get a palindrome (836363638).

The spelling of 121330517 in words is "one hundred twenty-one million, three hundred thirty thousand, five hundred seventeen".