105310823 has 4 divisors (see below), whose sum is σ = 105434280. Its totient is φ = 105187368.

The previous prime is 105310817. The next prime is 105310847. The reversal of 105310823 is 328013501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328013501 = 409 ⋅801989.

It is a cyclic number.

It is not a de Polignac number, because 105310823 - 2⁶ = 105310759 is a prime.

It is a super-2 number, since 2×105310823² = 22180738881874658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105310883) 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, 60440 + ... + 62157.

It is an arithmetic number, because the mean of its divisors is an integer number (26358570).

Almost surely, 2^105310823 is an apocalyptic number.

105310823 is a deficient number, since it is larger than the sum of its proper divisors (123457).

105310823 is an equidigital number, since it uses as much as digits as its factorization.

105310823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123456.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 105310823 is about 10262.1061678390. The cubic root of 105310823 is about 472.2344530309.

The spelling of 105310823 in words is "one hundred five million, three hundred ten thousand, eight hundred twenty-three".