100021133123 has 16 divisors (see below), whose sum is σ = 102903696000. Its totient is φ = 97177027584.

The previous prime is 100021133099. The next prime is 100021133129. The reversal of 100021133123 is 321331120001.

It is a cyclic number.

It is not a de Polignac number, because 100021133123 - 2³⁰ = 98947391299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100021133129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7137878 + ... + 7151876.

It is an arithmetic number, because the mean of its divisors is an integer number (6431481000).

Almost surely, 2^100021133123 is an apocalyptic number.

100021133123 is a deficient number, since it is larger than the sum of its proper divisors (2882562877).

100021133123 is a wasteful number, since it uses less digits than its factorization.

100021133123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15358.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 100021133123 its reverse (321331120001), we get a palindrome (421352253124).

The spelling of 100021133123 in words is "one hundred billion, twenty-one million, one hundred thirty-three thousand, one hundred twenty-three".