121424530115 has 12 divisors (see below), whose sum is σ = 169498732176. Its totient is φ = 83262534768.

The previous prime is 121424530091. The next prime is 121424530229. The reversal of 121424530115 is 511035424121.

It is a happy number.

It is not a de Polignac number, because 121424530115 - 2¹⁸ = 121424267971 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247804919 + ... + 247805408.

It is an arithmetic number, because the mean of its divisors is an integer number (14124894348).

Almost surely, 2^121424530115 is an apocalyptic number.

121424530115 is a deficient number, since it is larger than the sum of its proper divisors (48074202061).

121424530115 is an equidigital number, since it uses as much as digits as its factorization.

121424530115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495610346 (or 495610339 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 121424530115 its reverse (511035424121), we get a palindrome (632459954236).

The spelling of 121424530115 in words is "one hundred twenty-one billion, four hundred twenty-four million, five hundred thirty thousand, one hundred fifteen".