121344102355 has 16 divisors (see below), whose sum is σ = 166540999680. Its totient is φ = 83144269152.

The previous prime is 121344102331. The next prime is 121344102361. The reversal of 121344102355 is 553201443121.

It is not a de Polignac number, because 121344102355 - 2⁵ = 121344102323 is a prime.

It is an unprimeable number.

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, 1268079 + ... + 1360408.

It is an arithmetic number, because the mean of its divisors is an integer number (10408812480).

Almost surely, 2^121344102355 is an apocalyptic number.

121344102355 is a deficient number, since it is larger than the sum of its proper divisors (45196897325).

121344102355 is a wasteful number, since it uses less digits than its factorization.

121344102355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629818.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 121344102355 its reverse (553201443121), we get a palindrome (674545545476).

The spelling of 121344102355 in words is "one hundred twenty-one billion, three hundred forty-four million, one hundred two thousand, three hundred fifty-five".