121687014887 has 8 divisors (see below), whose sum is σ = 126831943680. Its totient is φ = 116618307480.

The previous prime is 121687014877. The next prime is 121687014923. The reversal of 121687014887 is 788410786121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121687014887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121687014877) 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, 19052087 + ... + 19058472.

It is an arithmetic number, because the mean of its divisors is an integer number (15853992960).

Almost surely, 2^121687014887 is an apocalyptic number.

121687014887 is a deficient number, since it is larger than the sum of its proper divisors (5144928793).

121687014887 is a wasteful number, since it uses less digits than its factorization.

121687014887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38110693.

The product of its (nonzero) digits is 1204224, while the sum is 53.

The spelling of 121687014887 in words is "one hundred twenty-one billion, six hundred eighty-seven million, fourteen thousand, eight hundred eighty-seven".