100303230421 has 4 divisors (see below), whose sum is σ = 101430233100. Its totient is φ = 99176227744.

The previous prime is 100303230397. The next prime is 100303230431. The reversal of 100303230421 is 124032303001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124032303001 = 67 ⋅1851228403.

It can be written as a sum of positive squares in 2 ways, for example, as 35660167921 + 64643062500 = 188839^2 + 254250^2 .

It is a cyclic number.

It is not a de Polignac number, because 100303230421 - 2⁵ = 100303230389 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 (100303230431) 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, 563501206 + ... + 563501383.

It is an arithmetic number, because the mean of its divisors is an integer number (25357558275).

Almost surely, 2^100303230421 is an apocalyptic number.

It is an amenable number.

100303230421 is a deficient number, since it is larger than the sum of its proper divisors (1127002679).

100303230421 is an equidigital number, since it uses as much as digits as its factorization.

100303230421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127002678.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 100303230421 its reverse (124032303001), we get a palindrome (224335533422).

The spelling of 100303230421 in words is "one hundred billion, three hundred three million, two hundred thirty thousand, four hundred twenty-one".