105107052123 has 12 divisors (see below), whose sum is σ = 152011798848. Its totient is φ = 69983444400.

The previous prime is 105107052121. The next prime is 105107052181. The reversal of 105107052123 is 321250701501.

105107052123 is a `hidden beast` number, since 1 + 0 + 51 + 0 + 70 + 521 + 23 = 666.

It is not a de Polignac number, because 105107052123 - 2¹ = 105107052121 is a prime.

It is a super-2 number, since 2×105107052123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105107052121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7319403 + ... + 7333748.

It is an arithmetic number, because the mean of its divisors is an integer number (12667649904).

Almost surely, 2^105107052123 is an apocalyptic number.

105107052123 is a deficient number, since it is larger than the sum of its proper divisors (46904746725).

105107052123 is a wasteful number, since it uses less digits than its factorization.

105107052123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14653954 (or 14653951 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

Adding to 105107052123 its reverse (321250701501), we get a palindrome (426357753624).

The spelling of 105107052123 in words is "one hundred five billion, one hundred seven million, fifty-two thousand, one hundred twenty-three".