105452444243 has 4 divisors (see below), whose sum is σ = 105623356440. Its totient is φ = 105281532048.

The previous prime is 105452444177. The next prime is 105452444287. The reversal of 105452444243 is 342444254501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342444254501 = 29 ⋅11808422569.

It is a cyclic number.

It is not a de Polignac number, because 105452444243 - 2¹⁴ = 105452427859 is a prime.

It is a super-2 number, since 2×105452444243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105452444197 and 105452444206.

It is not an unprimeable number, because it can be changed into a prime (105452444743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85455173 + ... + 85456406.

It is an arithmetic number, because the mean of its divisors is an integer number (26405839110).

Almost surely, 2^105452444243 is an apocalyptic number.

105452444243 is a deficient number, since it is larger than the sum of its proper divisors (170912197).

105452444243 is an equidigital number, since it uses as much as digits as its factorization.

105452444243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170912196.

The product of its (nonzero) digits is 307200, while the sum is 38.

Adding to 105452444243 its reverse (342444254501), we get a palindrome (447896698744).

The spelling of 105452444243 in words is "one hundred five billion, four hundred fifty-two million, four hundred forty-four thousand, two hundred forty-three".