105231153523 has 4 divisors (see below), whose sum is σ = 106672676248. Its totient is φ = 103789630800.

The previous prime is 105231153499. The next prime is 105231153529. The reversal of 105231153523 is 325351132501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105231153523 - 2¹⁷ = 105231022451 is a prime.

It is a super-2 number, since 2×105231153523² (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 (105231153529) 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 3 ways as a sum of consecutive naturals, for example, 720761253 + ... + 720761398.

It is an arithmetic number, because the mean of its divisors is an integer number (26668169062).

Almost surely, 2^105231153523 is an apocalyptic number.

105231153523 is a deficient number, since it is larger than the sum of its proper divisors (1441522725).

105231153523 is an equidigital number, since it uses as much as digits as its factorization.

105231153523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441522724.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 105231153523 in words is "one hundred five billion, two hundred thirty-one million, one hundred fifty-three thousand, five hundred twenty-three".