20343043 has 8 divisors (see below), whose sum is σ = 23688288. Its totient is φ = 17107584.

The previous prime is 20343031. The next prime is 20343049. The reversal of 20343043 is 34034302.

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

It is a cyclic number.

It is not a de Polignac number, because 20343043 - 2²¹ = 18245891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20343043.

It is not an unprimeable number, because it can be changed into a prime (20343049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27046 + ... + 27787.

It is an arithmetic number, because the mean of its divisors is an integer number (2961036).

Almost surely, 2^20343043 is an apocalyptic number.

20343043 is a deficient number, since it is larger than the sum of its proper divisors (3345245).

20343043 is an equidigital number, since it uses as much as digits as its factorization.

20343043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54893.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 20343043 is about 4510.3262631433. The cubic root of 20343043 is about 272.9849088430.

Adding to 20343043 its reverse (34034302), we get a palindrome (54377345).

The spelling of 20343043 in words is "twenty million, three hundred forty-three thousand, forty-three".