2820117082243 has 4 divisors (see below), whose sum is σ = 2820294609120. Its totient is φ = 2819939555368.

The previous prime is 2820117082199. The next prime is 2820117082267. The reversal of 2820117082243 is 3422807110282.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2820117082243 is a prime.

It is a super-3 number, since 3×2820117082243³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2820117082196 and 2820117082205.

It is not an unprimeable number, because it can be changed into a prime (2820117085243) 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, 88739608 + ... + 88771381.

It is an arithmetic number, because the mean of its divisors is an integer number (705073652280).

Almost surely, 2^{2820117082243} is an apocalyptic number.

2820117082243 is a deficient number, since it is larger than the sum of its proper divisors (177526877).

2820117082243 is a wasteful number, since it uses less digits than its factorization.

2820117082243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177526876.

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 2820117082243 in words is "two trillion, eight hundred twenty billion, one hundred seventeen million, eighty-two thousand, two hundred forty-three".