100434203301021 has 32 divisors (see below), whose sum is σ = 134842914760320. Its totient is φ = 66492400579584.

The previous prime is 100434203300987. The next prime is 100434203301031. The reversal of 100434203301021 is 120103302434001.

It is a happy number.

It is not a de Polignac number, because 100434203301021 - 2¹¹ = 100434203298973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100434203300982 and 100434203301000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100434203301031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1540062211 + ... + 1540127423.

It is an arithmetic number, because the mean of its divisors is an integer number (4213841086260).

Almost surely, 2^{100434203301021} is an apocalyptic number.

It is an amenable number.

100434203301021 is a deficient number, since it is larger than the sum of its proper divisors (34408711459299).

100434203301021 is a wasteful number, since it uses less digits than its factorization.

100434203301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71245.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 100434203301021 its reverse (120103302434001), we get a palindrome (220537505735022).

The spelling of 100434203301021 in words is "one hundred trillion, four hundred thirty-four billion, two hundred three million, three hundred one thousand, twenty-one".