100421001008 has 10 divisors (see below), whose sum is σ = 194565689484. Its totient is φ = 50210500496.

The previous prime is 100421001001. The next prime is 100421001013. The reversal of 100421001008 is 800100124001.

It is not an unprimeable number, because it can be changed into a prime (100421001001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3138156266 + ... + 3138156297.

Almost surely, 2^100421001008 is an apocalyptic number.

It is an amenable number.

100421001008 is a deficient number, since it is larger than the sum of its proper divisors (94144688476).

100421001008 is an equidigital number, since it uses as much as digits as its factorization.

100421001008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6276312571 (or 6276312565 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100421001008 its reverse (800100124001), we get a palindrome (900521125009).

The spelling of 100421001008 in words is "one hundred billion, four hundred twenty-one million, one thousand, eight".