105223125979 has 4 divisors (see below), whose sum is σ = 105324400480. Its totient is φ = 105121851480.

The previous prime is 105223125961. The next prime is 105223126031. The reversal of 105223125979 is 979521322501.

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 105223125979 - 2⁹ = 105223125467 is a prime.

It is a super-2 number, since 2×105223125979² (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 (105223125919) 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, 50635692 + ... + 50637769.

It is an arithmetic number, because the mean of its divisors is an integer number (26331100120).

Almost surely, 2^105223125979 is an apocalyptic number.

105223125979 is a deficient number, since it is larger than the sum of its proper divisors (101274501).

105223125979 is a wasteful number, since it uses less digits than its factorization.

105223125979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101274500.

The product of its (nonzero) digits is 340200, while the sum is 46.

The spelling of 105223125979 in words is "one hundred five billion, two hundred twenty-three million, one hundred twenty-five thousand, nine hundred seventy-nine".