121868346468871 has 16 divisors (see below), whose sum is σ = 123242801430240. Its totient is φ = 120497228380800.

The previous prime is 121868346468769. The next prime is 121868346468931. The reversal of 121868346468871 is 178864643868121.

It is a cyclic number.

It is not a de Polignac number, because 121868346468871 - 2³⁵ = 121833986730503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121868346468794 and 121868346468803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121868346768871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 548062605 + ... + 548284921.

It is an arithmetic number, because the mean of its divisors is an integer number (7702675089390).

Almost surely, 2^{121868346468871} is an apocalyptic number.

121868346468871 is a deficient number, since it is larger than the sum of its proper divisors (1374454961369).

121868346468871 is a wasteful number, since it uses less digits than its factorization.

121868346468871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229794.

The product of its digits is 594542592, while the sum is 73.

The spelling of 121868346468871 in words is "one hundred twenty-one trillion, eight hundred sixty-eight billion, three hundred forty-six million, four hundred sixty-eight thousand, eight hundred seventy-one".