21310110321112 has 32 divisors (see below), whose sum is σ = 40168064991600. Its totient is φ = 10598638915584.

The previous prime is 21310110321083. The next prime is 21310110321173. The reversal of 21310110321112 is 21112301101312.

It is a self number, because there is not a number n which added to its sum of digits gives 21310110321112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12834028 + ... + 14399044.

Almost surely, 2^{21310110321112} is an apocalyptic number.

It is an amenable number.

21310110321112 is a deficient number, since it is larger than the sum of its proper divisors (18857954670488).

21310110321112 is a wasteful number, since it uses less digits than its factorization.

21310110321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574035 (or 1574031 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 21310110321112 its reverse (21112301101312), we get a palindrome (42422411422424).

The spelling of 21310110321112 in words is "twenty-one trillion, three hundred ten billion, one hundred ten million, three hundred twenty-one thousand, one hundred twelve".