100104445421 has 8 divisors (see below), whose sum is σ = 100863573624. Its totient is φ = 99347852800.

The previous prime is 100104445403. The next prime is 100104445489. The reversal of 100104445421 is 124544401001.

It can be written as a sum of positive squares in 4 ways, for example, as 70535923396 + 29568522025 = 265586^2 + 171955^2 .

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 100104445421 - 2³⁴ = 82924576237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100104441421) 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, 554600 + ... + 712593.

It is an arithmetic number, because the mean of its divisors is an integer number (12607946703).

Almost surely, 2^100104445421 is an apocalyptic number.

It is an amenable number.

100104445421 is a deficient number, since it is larger than the sum of its proper divisors (759128203).

100104445421 is a wasteful number, since it uses less digits than its factorization.

100104445421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267791.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 100104445421 its reverse (124544401001), we get a palindrome (224648846422).

The spelling of 100104445421 in words is "one hundred billion, one hundred four million, four hundred forty-five thousand, four hundred twenty-one".