121024513 has 8 divisors (see below), whose sum is σ = 128480040. Its totient is φ = 113606400.

The previous prime is 121024507. The next prime is 121024543. The reversal of 121024513 is 315420121.

It can be written as a sum of positive squares in 4 ways, for example, as 529984 + 120494529 = 728^2 + 10977^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121024513 - 2¹³ = 121016321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121024543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2538 + ... + 15763.

It is an arithmetic number, because the mean of its divisors is an integer number (16060005).

Almost surely, 2^121024513 is an apocalyptic number.

It is an amenable number.

121024513 is a deficient number, since it is larger than the sum of its proper divisors (7455527).

121024513 is a wasteful number, since it uses less digits than its factorization.

121024513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18707.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 121024513 is about 11001.1141708465. The cubic root of 121024513 is about 494.6421424667.

Adding to 121024513 its reverse (315420121), we get a palindrome (436444634).

The spelling of 121024513 in words is "one hundred twenty-one million, twenty-four thousand, five hundred thirteen".