100003021201 has 4 divisors (see below), whose sum is σ = 100103326132. Its totient is φ = 99902716272.

The previous prime is 100003021187. The next prime is 100003021213. The reversal of 100003021201 is 102120300001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91324235601 + 8678785600 = 302199^2 + 93160^2 .

It is a cyclic number.

It is not a de Polignac number, because 100003021201 - 2¹⁷ = 100002890129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100003025201) 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, 50150970 + ... + 50152963.

It is an arithmetic number, because the mean of its divisors is an integer number (25025831533).

Almost surely, 2^100003021201 is an apocalyptic number.

It is an amenable number.

100003021201 is a deficient number, since it is larger than the sum of its proper divisors (100304931).

100003021201 is an equidigital number, since it uses as much as digits as its factorization.

100003021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100304930.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 100003021201 its reverse (102120300001), we get a palindrome (202123321202).

The spelling of 100003021201 in words is "one hundred billion, three million, twenty-one thousand, two hundred one".