100241421 has 16 divisors (see below), whose sum is σ = 154902528. Its totient is φ = 56473200.

The previous prime is 100241419. The next prime is 100241431. The reversal of 100241421 is 124142001.

It is not a de Polignac number, because 100241421 - 2¹ = 100241419 is a prime.

It is a super-3 number, since 3×100241421³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100241421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100241431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32125 + ... + 35106.

It is an arithmetic number, because the mean of its divisors is an integer number (9681408).

Almost surely, 2^100241421 is an apocalyptic number.

It is an amenable number.

100241421 is a deficient number, since it is larger than the sum of its proper divisors (54661107).

100241421 is an equidigital number, since it uses as much as digits as its factorization.

100241421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67312.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 100241421 is about 10012.0637732687. The cubic root of 100241421 is about 464.5321088466.

Adding to 100241421 its reverse (124142001), we get a palindrome (224383422).

The spelling of 100241421 in words is "one hundred million, two hundred forty-one thousand, four hundred twenty-one".