105243320033 has 4 divisors (see below), whose sum is σ = 110782442160. Its totient is φ = 99704197908.

The previous prime is 105243320023. The next prime is 105243320051. The reversal of 105243320033 is 330023342501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 330023342501 = 17123 ⋅19273687.

It is a cyclic number.

It is not a de Polignac number, because 105243320033 - 2¹⁰ = 105243319009 is a prime.

It is a super-2 number, since 2×105243320033² (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 = 105243319984 and 105243320011.

It is not an unprimeable number, because it can be changed into a prime (105243320003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2769561035 + ... + 2769561072.

It is an arithmetic number, because the mean of its divisors is an integer number (27695610540).

Almost surely, 2^105243320033 is an apocalyptic number.

It is an amenable number.

105243320033 is a deficient number, since it is larger than the sum of its proper divisors (5539122127).

105243320033 is an equidigital number, since it uses as much as digits as its factorization.

105243320033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5539122126.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 105243320033 its reverse (330023342501), we get a palindrome (435266662534).

The spelling of 105243320033 in words is "one hundred five billion, two hundred forty-three million, three hundred twenty thousand, thirty-three".