21110104312042 has 8 divisors (see below), whose sum is σ = 31665323088000. Its totient is φ = 10554996616044.

The previous prime is 21110104312013. The next prime is 21110104312069. The reversal of 21110104312042 is 24021340101112.

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

It is an unprimeable number.

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, 27293242 + ... + 28056037.

It is an arithmetic number, because the mean of its divisors is an integer number (3958165386000).

Almost surely, 2^{21110104312042} is an apocalyptic number.

21110104312042 is a deficient number, since it is larger than the sum of its proper divisors (10555218775958).

21110104312042 is a wasteful number, since it uses less digits than its factorization.

21110104312042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55539980.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 21110104312042 its reverse (24021340101112), we get a palindrome (45131444413154).

The spelling of 21110104312042 in words is "twenty-one trillion, one hundred ten billion, one hundred four million, three hundred twelve thousand, forty-two".