20117343 has 8 divisors (see below), whose sum is σ = 26858800. Its totient is φ = 13393728.

The previous prime is 20117323. The next prime is 20117351. The reversal of 20117343 is 34371102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20117343 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 (20117303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558 + ... + 6531.

It is an arithmetic number, because the mean of its divisors is an integer number (3357350).

Almost surely, 2^20117343 is an apocalyptic number.

20117343 is a deficient number, since it is larger than the sum of its proper divisors (6741457).

20117343 is an equidigital number, since it uses as much as digits as its factorization.

20117343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8921.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 20117343 is about 4485.2361141862. The cubic root of 20117343 is about 271.9715899898.

Adding to 20117343 its reverse (34371102), we get a palindrome (54488445).

The spelling of 20117343 in words is "twenty million, one hundred seventeen thousand, three hundred forty-three".