1002100003 has 8 divisors (see below), whose sum is σ = 1063377072. Its totient is φ = 941081856.

The previous prime is 1002099997. The next prime is 1002100007. The reversal of 1002100003 is 3000012001.

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-1002100003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002100007) 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, 56725 + ... + 72262.

It is an arithmetic number, because the mean of its divisors is an integer number (132922134).

Almost surely, 2^1002100003 is an apocalyptic number.

1002100003 is a deficient number, since it is larger than the sum of its proper divisors (61277069).

1002100003 is a wasteful number, since it uses less digits than its factorization.

1002100003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129461.

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

The square root of 1002100003 is about 31655.9631507241. The cubic root of 1002100003 is about 1000.6995115695.

Adding to 1002100003 its reverse (3000012001), we get a palindrome (4002112004).

The spelling of 1002100003 in words is "one billion, two million, one hundred thousand, three".