100021433423 has 4 divisors (see below), whose sum is σ = 100022135520. Its totient is φ = 100020731328.

The previous prime is 100021433419. The next prime is 100021433431. The reversal of 100021433423 is 324334120001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 100021433423 - 2² = 100021433419 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 (100021433023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53015 + ... + 450392.

It is an arithmetic number, because the mean of its divisors is an integer number (25005533880).

Almost surely, 2^100021433423 is an apocalyptic number.

100021433423 is a deficient number, since it is larger than the sum of its proper divisors (702097).

100021433423 is an equidigital number, since it uses as much as digits as its factorization.

100021433423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702096.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 100021433423 its reverse (324334120001), we get a palindrome (424355553424).

The spelling of 100021433423 in words is "one hundred billion, twenty-one million, four hundred thirty-three thousand, four hundred twenty-three".