20943203 has 2 divisors, whose sum is σ = 20943204. Its totient is φ = 20943202.

The previous prime is 20943199. The next prime is 20943253. The reversal of 20943203 is 30234902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20943203 - 2² = 20943199 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20943253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10471601 + 10471602.

It is an arithmetic number, because the mean of its divisors is an integer number (10471602).

Almost surely, 2^20943203 is an apocalyptic number.

20943203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20943203 is an equidigital number, since it uses as much as digits as its factorization.

20943203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 20943203 is about 4576.3744383518. The cubic root of 20943203 is about 275.6434650998.

The spelling of 20943203 in words is "twenty million, nine hundred forty-three thousand, two hundred three".