121352402729 has 8 divisors (see below), whose sum is σ = 126991435200. Its totient is φ = 115743607056.

The previous prime is 121352402707. The next prime is 121352402749. The reversal of 121352402729 is 927204253121.

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 121352402729 - 2²⁰ = 121351354153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121352402692 and 121352402701.

It is not an unprimeable number, because it can be changed into a prime (121352402749) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7550987 + ... + 7567040.

It is an arithmetic number, because the mean of its divisors is an integer number (15873929400).

Almost surely, 2^121352402729 is an apocalyptic number.

It is an amenable number.

121352402729 is a deficient number, since it is larger than the sum of its proper divisors (5639032471).

121352402729 is a wasteful number, since it uses less digits than its factorization.

121352402729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15118399.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 121352402729 in words is "one hundred twenty-one billion, three hundred fifty-two million, four hundred two thousand, seven hundred twenty-nine".