71100203 has 2 divisors, whose sum is σ = 71100204. Its totient is φ = 71100202.

The previous prime is 71100193. The next prime is 71100217. The reversal of 71100203 is 30200117.

It is an a-pointer prime, because the next prime (71100217) can be obtained adding 71100203 to its sum of digits (14).

It is a weak prime.

It is an emirp because it is prime and its reverse (30200117) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71100203 - 2⁴ = 71100187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (71100803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35550101 + 35550102.

It is an arithmetic number, because the mean of its divisors is an integer number (35550102).

Almost surely, 2^71100203 is an apocalyptic number.

71100203 is a deficient number, since it is larger than the sum of its proper divisors (1).

71100203 is an equidigital number, since it uses as much as digits as its factorization.

71100203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 71100203 is about 8432.0936308843. The cubic root of 71100203 is about 414.2764826039.

The spelling of 71100203 in words is "seventy-one million, one hundred thousand, two hundred three".