21100230013 has 8 divisors (see below), whose sum is σ = 21163552256. Its totient is φ = 21036985200.

The previous prime is 21100229963. The next prime is 21100230029. The reversal of 21100230013 is 31003200112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21100230013 - 2²⁹ = 20563359101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21100229975 and 21100230002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21100230313) 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 7 ways as a sum of consecutive naturals, for example, 551443 + ... + 588463.

It is an arithmetic number, because the mean of its divisors is an integer number (2645444032).

Almost surely, 2^21100230013 is an apocalyptic number.

It is an amenable number.

21100230013 is a deficient number, since it is larger than the sum of its proper divisors (63322243).

21100230013 is a wasteful number, since it uses less digits than its factorization.

21100230013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38715.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 21100230013 its reverse (31003200112), we get a palindrome (52103430125).

The spelling of 21100230013 in words is "twenty-one billion, one hundred million, two hundred thirty thousand, thirteen".