20117555133043 has 4 divisors (see below), whose sum is σ = 20271124256328. Its totient is φ = 19963986009760.

The previous prime is 20117555133041. The next prime is 20117555133077. The reversal of 20117555133043 is 34033155571102.

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

It is a cyclic number.

It is not a de Polignac number, because 20117555133043 - 2¹ = 20117555133041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20117555132987 and 20117555133005.

It is not an unprimeable number, because it can be changed into a prime (20117555133041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76784561446 + ... + 76784561707.

It is an arithmetic number, because the mean of its divisors is an integer number (5067781064082).

Almost surely, 2^{20117555133043} is an apocalyptic number.

20117555133043 is a deficient number, since it is larger than the sum of its proper divisors (153569123285).

20117555133043 is a wasteful number, since it uses less digits than its factorization.

20117555133043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153569123284.

The product of its (nonzero) digits is 189000, while the sum is 40.

The spelling of 20117555133043 in words is "twenty trillion, one hundred seventeen billion, five hundred fifty-five million, one hundred thirty-three thousand, forty-three".