21103610026 has 8 divisors (see below), whose sum is σ = 33031737504. Its totient is φ = 10093030860.

The previous prime is 21103609993. The next prime is 21103610027. The reversal of 21103610026 is 62001630112.

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

It is a super-2 number, since 2×21103610026² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21103609979 and 21103610006.

It is not an unprimeable number, because it can be changed into a prime (21103610027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229387020 + ... + 229387111.

It is an arithmetic number, because the mean of its divisors is an integer number (4128967188).

Almost surely, 2^21103610026 is an apocalyptic number.

21103610026 is a deficient number, since it is larger than the sum of its proper divisors (11928127478).

21103610026 is a wasteful number, since it uses less digits than its factorization.

21103610026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458774156.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 21103610026 in words is "twenty-one billion, one hundred three million, six hundred ten thousand, twenty-six".