1000102001 has 4 divisors (see below), whose sum is σ = 1012761600. Its totient is φ = 987442404.

The previous prime is 1000101967. The next prime is 1000102003. The reversal of 1000102001 is 1002010001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1000102001 - 2¹⁰ = 1000100977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000102003) 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, 6329681 + ... + 6329838.

It is an arithmetic number, because the mean of its divisors is an integer number (253190400).

Almost surely, 2^1000102001 is an apocalyptic number.

It is an amenable number.

1000102001 is a deficient number, since it is larger than the sum of its proper divisors (12659599).

1000102001 is an equidigital number, since it uses as much as digits as its factorization.

1000102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12659598.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 1000102001 is about 31624.3893379777. The cubic root of 1000102001 is about 1000.0339991774.

Adding to 1000102001 its reverse (1002010001), we get a palindrome (2002112002).

The spelling of 1000102001 in words is "one billion, one hundred two thousand, one".