100423334221 has 4 divisors (see below), whose sum is σ = 114769524832. Its totient is φ = 86077143612.

The previous prime is 100423334213. The next prime is 100423334251. The reversal of 100423334221 is 122433324001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100423334221 - 2³ = 100423334213 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 (100423334251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7173095295 + ... + 7173095308.

It is an arithmetic number, because the mean of its divisors is an integer number (28692381208).

Almost surely, 2^100423334221 is an apocalyptic number.

It is an amenable number.

100423334221 is a deficient number, since it is larger than the sum of its proper divisors (14346190611).

100423334221 is an equidigital number, since it uses as much as digits as its factorization.

100423334221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14346190610.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 100423334221 its reverse (122433324001), we get a palindrome (222856658222).

The spelling of 100423334221 in words is "one hundred billion, four hundred twenty-three million, three hundred thirty-four thousand, two hundred twenty-one".