54321121117 has 4 divisors (see below), whose sum is σ = 54374746140. Its totient is φ = 54267496096.

The previous prime is 54321121109. The next prime is 54321121213. The reversal of 54321121117 is 71112112345.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 824206681 + 53496914436 = 28709^2 + 231294^2 .

It is a cyclic number.

It is not a de Polignac number, because 54321121117 - 2³ = 54321121109 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 (54321121817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26810992 + ... + 26813017.

It is an arithmetic number, because the mean of its divisors is an integer number (13593686535).

Almost surely, 2^54321121117 is an apocalyptic number.

It is an amenable number.

54321121117 is a deficient number, since it is larger than the sum of its proper divisors (53625023).

54321121117 is a wasteful number, since it uses less digits than its factorization.

54321121117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53625022.

The product of its digits is 1680, while the sum is 28.

The spelling of 54321121117 in words is "fifty-four billion, three hundred twenty-one million, one hundred twenty-one thousand, one hundred seventeen".