121701924863 has 4 divisors (see below), whose sum is σ = 121812866640. Its totient is φ = 121590983088.

The previous prime is 121701924829. The next prime is 121701924901. The reversal of 121701924863 is 368429107121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368429107121 = 89 ⋅4139652889.

It is a cyclic number.

It is not a de Polignac number, because 121701924863 - 2¹⁶ = 121701859327 is a prime.

It is a super-2 number, since 2×121701924863² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121701924163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55469243 + ... + 55471436.

It is an arithmetic number, because the mean of its divisors is an integer number (30453216660).

Almost surely, 2^121701924863 is an apocalyptic number.

121701924863 is a deficient number, since it is larger than the sum of its proper divisors (110941777).

121701924863 is a wasteful number, since it uses less digits than its factorization.

121701924863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110941776.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 121701924863 in words is "one hundred twenty-one billion, seven hundred one million, nine hundred twenty-four thousand, eight hundred sixty-three".