105512532423 has 16 divisors (see below), whose sum is σ = 146002521600. Its totient is φ = 67697715680.

The previous prime is 105512532379. The next prime is 105512532431. The reversal of 105512532423 is 324235215501.

It is a cyclic number.

It is not a de Polignac number, because 105512532423 - 2²² = 105508338119 is a prime.

It is a super-2 number, since 2×105512532423² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105512532623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1922763 + ... + 1976876.

It is an arithmetic number, because the mean of its divisors is an integer number (9125157600).

Almost surely, 2^105512532423 is an apocalyptic number.

105512532423 is a deficient number, since it is larger than the sum of its proper divisors (40489989177).

105512532423 is a wasteful number, since it uses less digits than its factorization.

105512532423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3899982.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 105512532423 its reverse (324235215501), we get a palindrome (429747747924).

The spelling of 105512532423 in words is "one hundred five billion, five hundred twelve million, five hundred thirty-two thousand, four hundred twenty-three".