121129602259 has 4 divisors (see below), whose sum is σ = 121273976880. Its totient is φ = 120985227640.

The previous prime is 121129602247. The next prime is 121129602277. The reversal of 121129602259 is 952206921121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121129602259 - 2²³ = 121121213651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121129602239) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 72186052 + ... + 72187729.

It is an arithmetic number, because the mean of its divisors is an integer number (30318494220).

Almost surely, 2^121129602259 is an apocalyptic number.

121129602259 is a deficient number, since it is larger than the sum of its proper divisors (144374621).

121129602259 is an equidigital number, since it uses as much as digits as its factorization.

121129602259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144374620.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 121129602259 in words is "one hundred twenty-one billion, one hundred twenty-nine million, six hundred two thousand, two hundred fifty-nine".