68128003 has 2 divisors, whose sum is σ = 68128004. Its totient is φ = 68128002.

The previous prime is 68127973. The next prime is 68128031. The reversal of 68128003 is 30082186.

It is an a-pointer prime, because the next prime (68128031) can be obtained adding 68128003 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68128003 is a prime.

It is not a weakly prime, because it can be changed into another prime (68128043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34064001 + 34064002.

It is an arithmetic number, because the mean of its divisors is an integer number (34064002).

Almost surely, 2^68128003 is an apocalyptic number.

68128003 is a deficient number, since it is larger than the sum of its proper divisors (1).

68128003 is an equidigital number, since it uses as much as digits as its factorization.

68128003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 68128003 is about 8253.9689240995. The cubic root of 68128003 is about 408.4214595114.

The spelling of 68128003 in words is "sixty-eight million, one hundred twenty-eight thousand, three".