21103000013223 has 12 divisors (see below), whose sum is σ = 30766990674888. Its totient is φ = 13937183808720.

The previous prime is 21103000013189. The next prime is 21103000013243. The reversal of 21103000013223 is 32231000030112.

21103000013223 is a `hidden beast` number, since 211 + 0 + 300 + 0 + 0 + 132 + 23 = 666.

It is not a de Polignac number, because 21103000013223 - 2¹² = 21103000009127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21103000013196 and 21103000013205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103000013243) 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 11 ways as a sum of consecutive naturals, for example, 10956904548 + ... + 10956906473.

It is an arithmetic number, because the mean of its divisors is an integer number (2563915889574).

Almost surely, 2^{21103000013223} is an apocalyptic number.

21103000013223 is a deficient number, since it is larger than the sum of its proper divisors (9663990661665).

21103000013223 is a wasteful number, since it uses less digits than its factorization.

21103000013223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21913811134 (or 21913811131 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21103000013223 its reverse (32231000030112), we get a palindrome (53334000043335).

The spelling of 21103000013223 in words is "twenty-one trillion, one hundred three billion, thirteen thousand, two hundred twenty-three".