100002102001 has 4 divisors (see below), whose sum is σ = 100179726192. Its totient is φ = 99824477812.

The previous prime is 100002101923. The next prime is 100002102007. The reversal of 100002102001 is 100201200001.

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 100002102001 - 2⁷ = 100002101873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100002102007) 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, 88811251 + ... + 88812376.

It is an arithmetic number, because the mean of its divisors is an integer number (25044931548).

Almost surely, 2^100002102001 is an apocalyptic number.

It is an amenable number.

100002102001 is a deficient number, since it is larger than the sum of its proper divisors (177624191).

100002102001 is an equidigital number, since it uses as much as digits as its factorization.

100002102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177624190.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 100002102001 its reverse (100201200001), we get a palindrome (200203302002).

The spelling of 100002102001 in words is "one hundred billion, two million, one hundred two thousand, one".