1001000103 has 16 divisors (see below), whose sum is σ = 1433085696. Its totient is φ = 619230080.

The previous prime is 1001000051. The next prime is 1001000107. The reversal of 1001000103 is 3010001001.

It is a cyclic number.

It is not a de Polignac number, because 1001000103 - 2⁸ = 1000999847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001000091 and 1001000100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001000107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134601 + ... + 141842.

It is an arithmetic number, because the mean of its divisors is an integer number (89567856).

Almost surely, 2^1001000103 is an apocalyptic number.

1001000103 is a deficient number, since it is larger than the sum of its proper divisors (432085593).

1001000103 is a wasteful number, since it uses less digits than its factorization.

1001000103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276534.

The product of its (nonzero) digits is 3, while the sum is 6.

The square root of 1001000103 is about 31638.5856668720. The cubic root of 1001000103 is about 1000.3332565944. Note that the first 3 decimals are identical.

Adding to 1001000103 its reverse (3010001001), we get a palindrome (4011001104).

The spelling of 1001000103 in words is "one billion, one million, one hundred three", and thus it is an aban number.