21111130110003 has 16 divisors (see below), whose sum is σ = 28534231086240. Its totient is φ = 13882366607616.

The previous prime is 21111130109959. The next prime is 21111130110011. The reversal of 21111130110003 is 30001103111112.

It is not a de Polignac number, because 21111130110003 - 2³⁶ = 21042410633267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21111130110053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163519168 + ... + 163648221.

It is an arithmetic number, because the mean of its divisors is an integer number (1783389442890).

Almost surely, 2^{21111130110003} is an apocalyptic number.

21111130110003 is a deficient number, since it is larger than the sum of its proper divisors (7423100976237).

21111130110003 is a wasteful number, since it uses less digits than its factorization.

21111130110003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327167686.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 21111130110003 its reverse (30001103111112), we get a palindrome (51112233221115).

The spelling of 21111130110003 in words is "twenty-one trillion, one hundred eleven billion, one hundred thirty million, one hundred ten thousand, three".