100021103213 has 4 divisors (see below), whose sum is σ = 102149211840. Its totient is φ = 97892994588.

The previous prime is 100021103207. The next prime is 100021103233. The reversal of 100021103213 is 312301120001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 312301120001 = 13 ⋅24023163077.

It is a cyclic number.

It is not a de Polignac number, because 100021103213 - 2⁴ = 100021103197 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 (100021103233) 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, 1064054243 + ... + 1064054336.

It is an arithmetic number, because the mean of its divisors is an integer number (25537302960).

Almost surely, 2^100021103213 is an apocalyptic number.

It is an amenable number.

100021103213 is a deficient number, since it is larger than the sum of its proper divisors (2128108627).

100021103213 is an equidigital number, since it uses as much as digits as its factorization.

100021103213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128108626.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 100021103213 its reverse (312301120001), we get a palindrome (412322223214).

The spelling of 100021103213 in words is "one hundred billion, twenty-one million, one hundred three thousand, two hundred thirteen".