1006005103 has 4 divisors (see below), whose sum is σ = 1058952760. Its totient is φ = 953057448.

The previous prime is 1006005097. The next prime is 1006005113. The reversal of 1006005103 is 3015006001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1006005103 - 2⁵ = 1006005071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006005113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26473800 + ... + 26473837.

It is an arithmetic number, because the mean of its divisors is an integer number (264738190).

Almost surely, 2^1006005103 is an apocalyptic number.

1006005103 is a deficient number, since it is larger than the sum of its proper divisors (52947657).

1006005103 is an equidigital number, since it uses as much as digits as its factorization.

1006005103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52947656.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1006005103 is about 31717.5834987472. The cubic root of 1006005103 is about 1001.9977075072.

The spelling of 1006005103 in words is "one billion, six million, five thousand, one hundred three".