121116617130873 has 64 divisors (see below), whose sum is σ = 205172674445312. Its totient is φ = 61823131856640.

The previous prime is 121116617130863. The next prime is 121116617130889. The reversal of 121116617130873 is 378031716611121.

It is a happy number.

It is not a de Polignac number, because 121116617130873 - 2⁴ = 121116617130857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121116617130863) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 336080286 + ... + 336440472.

It is an arithmetic number, because the mean of its divisors is an integer number (3205823038208).

Almost surely, 2^{121116617130873} is an apocalyptic number.

121116617130873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121116617130873 is a deficient number, since it is larger than the sum of its proper divisors (84056057314439).

121116617130873 is a wasteful number, since it uses less digits than its factorization.

121116617130873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399974.

The product of its (nonzero) digits is 254016, while the sum is 48.

The spelling of 121116617130873 in words is "one hundred twenty-one trillion, one hundred sixteen billion, six hundred seventeen million, one hundred thirty thousand, eight hundred seventy-three".