20043071 has 2 divisors, whose sum is σ = 20043072. Its totient is φ = 20043070.

The previous prime is 20043061. The next prime is 20043077. The reversal of 20043071 is 17034002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20043071 - 2⁶ = 20043007 is a prime.

It is a super-2 number, since 2×20043071² = 803449390222082, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20043077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021535 + 10021536.

It is an arithmetic number, because the mean of its divisors is an integer number (10021536).

Almost surely, 2^20043071 is an apocalyptic number.

20043071 is a deficient number, since it is larger than the sum of its proper divisors (1).

20043071 is an equidigital number, since it uses as much as digits as its factorization.

20043071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 20043071 is about 4476.9488493839. The cubic root of 20043071 is about 271.6364764189.

Adding to 20043071 its reverse (17034002), we get a palindrome (37077073).

The spelling of 20043071 in words is "twenty million, forty-three thousand, seventy-one".