20243343 has 4 divisors (see below), whose sum is σ = 26991128. Its totient is φ = 13495560.

The previous prime is 20243339. The next prime is 20243347. The reversal of 20243343 is 34334202.

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

It is an interprime number because it is at equal distance from previous prime (20243339) and next prime (20243347).

It is not a de Polignac number, because 20243343 - 2² = 20243339 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 (20243347) 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, 3373888 + ... + 3373893.

It is an arithmetic number, because the mean of its divisors is an integer number (6747782).

Almost surely, 2^20243343 is an apocalyptic number.

20243343 is a deficient number, since it is larger than the sum of its proper divisors (6747785).

20243343 is an equidigital number, since it uses as much as digits as its factorization.

20243343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6747784.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 20243343 is about 4499.2602725337. The cubic root of 20243343 is about 272.5382175728.

Adding to 20243343 its reverse (34334202), we get a palindrome (54577545).

The spelling of 20243343 in words is "twenty million, two hundred forty-three thousand, three hundred forty-three".