1000206103 has 8 divisors (see below), whose sum is σ = 1111892096. Its totient is φ = 893484000.

The previous prime is 1000206073. The next prime is 1000206121. The reversal of 1000206103 is 3016020001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000206103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000206133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1240548 + ... + 1241353.

It is an arithmetic number, because the mean of its divisors is an integer number (138986512).

Almost surely, 2^1000206103 is an apocalyptic number.

1000206103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1000206103 is a deficient number, since it is larger than the sum of its proper divisors (111685993).

1000206103 is a wasteful number, since it uses less digits than its factorization.

1000206103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481945.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1000206103 is about 31626.0352083533. The cubic root of 1000206103 is about 1000.0686962807.

Adding to 1000206103 its reverse (3016020001), we get a palindrome (4016226104).

The spelling of 1000206103 in words is "one billion, two hundred six thousand, one hundred three".