20303043 has 8 divisors (see below), whose sum is σ = 28247808. Its totient is φ = 12946824.

The previous prime is 20303033. The next prime is 20303069. The reversal of 20303043 is 34030302.

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

It is not a de Polignac number, because 20303043 - 2⁴ = 20303027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20303033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147055 + ... + 147192.

It is an arithmetic number, because the mean of its divisors is an integer number (3530976).

Almost surely, 2^20303043 is an apocalyptic number.

20303043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20303043 is a deficient number, since it is larger than the sum of its proper divisors (7944765).

20303043 is a wasteful number, since it uses less digits than its factorization.

20303043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294273.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 20303043 is about 4505.8898122346. The cubic root of 20303043 is about 272.8058703871.

Adding to 20303043 its reverse (34030302), we get a palindrome (54333345).

The spelling of 20303043 in words is "twenty million, three hundred three thousand, forty-three".