105134111423 has 64 divisors (see below), whose sum is σ = 122624409600. Its totient is φ = 89258682240.

The previous prime is 105134111393. The next prime is 105134111431. The reversal of 105134111423 is 324111431501.

It is a cyclic number.

It is not a de Polignac number, because 105134111423 - 2¹⁰ = 105134110399 is a prime.

It is a super-2 number, since 2×105134111423² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105134111392 and 105134111401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105134111473) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 342456236 + ... + 342456542.

It is an arithmetic number, because the mean of its divisors is an integer number (1916006400).

Almost surely, 2^105134111423 is an apocalyptic number.

105134111423 is a deficient number, since it is larger than the sum of its proper divisors (17490298177).

105134111423 is a wasteful number, since it uses less digits than its factorization.

105134111423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 105134111423 its reverse (324111431501), we get a palindrome (429245542924).

The spelling of 105134111423 in words is "one hundred five billion, one hundred thirty-four million, one hundred eleven thousand, four hundred twenty-three".