121345302115 has 16 divisors (see below), whose sum is σ = 150239103840. Its totient is φ = 94027150080.

The previous prime is 121345302109. The next prime is 121345302161. The reversal of 121345302115 is 511203543121.

It is not a de Polignac number, because 121345302115 - 2²⁹ = 120808431203 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 2100744 + ... + 2157733.

It is an arithmetic number, because the mean of its divisors is an integer number (9389943990).

Almost surely, 2^121345302115 is an apocalyptic number.

121345302115 is a deficient number, since it is larger than the sum of its proper divisors (28893801725).

121345302115 is a wasteful number, since it uses less digits than its factorization.

121345302115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258662.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 121345302115 its reverse (511203543121), we get a palindrome (632548845236).

The spelling of 121345302115 in words is "one hundred twenty-one billion, three hundred forty-five million, three hundred two thousand, one hundred fifteen".