100421100321 has 8 divisors (see below), whose sum is σ = 133996164384. Its totient is φ = 66896718240.

The previous prime is 100421100313. The next prime is 100421100337. The reversal of 100421100321 is 123001124001.

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

It is not a de Polignac number, because 100421100321 - 2³ = 100421100313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100421100321.

It is not an unprimeable number, because it can be changed into a prime (100421100721) 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, 12665871 + ... + 12673796.

It is an arithmetic number, because the mean of its divisors is an integer number (16749520548).

Almost surely, 2^100421100321 is an apocalyptic number.

It is an amenable number.

100421100321 is a deficient number, since it is larger than the sum of its proper divisors (33575064063).

100421100321 is a wasteful number, since it uses less digits than its factorization.

100421100321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25340991.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 100421100321 its reverse (123001124001), we get a palindrome (223422224322).

The spelling of 100421100321 in words is "one hundred billion, four hundred twenty-one million, one hundred thousand, three hundred twenty-one".