121765707347 has 8 divisors (see below), whose sum is σ = 127465818144. Its totient is φ = 116099425728.

The previous prime is 121765707317. The next prime is 121765707361. The reversal of 121765707347 is 743707567121.

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 121765707347 - 2²² = 121761513043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121765707295 and 121765707304.

It is not an unprimeable number, because it can be changed into a prime (121765707317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8449928 + ... + 8464325.

It is an arithmetic number, because the mean of its divisors is an integer number (15933227268).

Almost surely, 2^121765707347 is an apocalyptic number.

121765707347 is a deficient number, since it is larger than the sum of its proper divisors (5700110797).

121765707347 is a wasteful number, since it uses less digits than its factorization.

121765707347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16914589.

The product of its (nonzero) digits is 1728720, while the sum is 50.

The spelling of 121765707347 in words is "one hundred twenty-one billion, seven hundred sixty-five million, seven hundred seven thousand, three hundred forty-seven".