1010020003 has 2 divisors, whose sum is σ = 1010020004. Its totient is φ = 1010020002.

The previous prime is 1010019979. The next prime is 1010020019. The reversal of 1010020003 is 3000200101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010020003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1010020073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505010001 + 505010002.

It is an arithmetic number, because the mean of its divisors is an integer number (505010002).

Almost surely, 2^1010020003 is an apocalyptic number.

1010020003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010020003 is an equidigital number, since it uses as much as digits as its factorization.

1010020003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 1010020003 is about 31780.8118681698. The cubic root of 1010020003 is about 1003.3289070811.

Adding to 1010020003 its reverse (3000200101), we get a palindrome (4010220104).

It can be divided in two parts, 10100 and 20003, that added together give a palindrome (30103).

The spelling of 1010020003 in words is "one billion, ten million, twenty thousand, three".