42271003 has 2 divisors, whose sum is σ = 42271004. Its totient is φ = 42271002.

The previous prime is 42270979. The next prime is 42271039. The reversal of 42271003 is 30017224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42271003 - 2¹⁷ = 42139931 is a prime.

It is not a weakly prime, because it can be changed into another prime (42271043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21135501 + 21135502.

It is an arithmetic number, because the mean of its divisors is an integer number (21135502).

Almost surely, 2^42271003 is an apocalyptic number.

42271003 is a deficient number, since it is larger than the sum of its proper divisors (1).

42271003 is an equidigital number, since it uses as much as digits as its factorization.

42271003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 42271003 is about 6501.6154146489. The cubic root of 42271003 is about 348.3486920928.

Adding to 42271003 its reverse (30017224), we get a palindrome (72288227).

The spelling of 42271003 in words is "forty-two million, two hundred seventy-one thousand, three".