100002020321 has 8 divisors (see below), whose sum is σ = 119257067904. Its totient is φ = 81989233920.

The previous prime is 100002020299. The next prime is 100002020329. The reversal of 100002020321 is 123020200001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100002020321 - 2²² = 99997826017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100002020329) 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, 310565120 + ... + 310565441.

It is an arithmetic number, because the mean of its divisors is an integer number (14907133488).

Almost surely, 2^100002020321 is an apocalyptic number.

It is an amenable number.

100002020321 is a deficient number, since it is larger than the sum of its proper divisors (19255047583).

100002020321 is an equidigital number, since it uses as much as digits as its factorization.

100002020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621130591.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 100002020321 its reverse (123020200001), we get a palindrome (223022220322).

The spelling of 100002020321 in words is "one hundred billion, two million, twenty thousand, three hundred twenty-one".