105243315523 has 8 divisors (see below), whose sum is σ = 105566706288. Its totient is φ = 104920312224.

The previous prime is 105243315517. The next prime is 105243315533. The reversal of 105243315523 is 325513342501.

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

It is a cyclic number.

It is not a de Polignac number, because 105243315523 - 2⁹ = 105243315011 is a prime.

It is a super-2 number, since 2×105243315523² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105243315533) 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 7 ways as a sum of consecutive naturals, for example, 451965 + ... + 644017.

It is an arithmetic number, because the mean of its divisors is an integer number (13195838286).

Almost surely, 2^105243315523 is an apocalyptic number.

105243315523 is a deficient number, since it is larger than the sum of its proper divisors (323390765).

105243315523 is a wasteful number, since it uses less digits than its factorization.

105243315523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193733.

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 105243315523 in words is "one hundred five billion, two hundred forty-three million, three hundred fifteen thousand, five hundred twenty-three".