105243313619 has 4 divisors (see below), whose sum is σ = 105375363744. Its totient is φ = 105111263496.

The previous prime is 105243313607. The next prime is 105243313627. The reversal of 105243313619 is 916313342501.

It is a happy number.

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 105243313619 - 2²⁸ = 104974878163 is a prime.

It is a super-2 number, since 2×105243313619² (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 (105243313639) 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, 66023867 + ... + 66025460.

It is an arithmetic number, because the mean of its divisors is an integer number (26343840936).

Almost surely, 2^105243313619 is an apocalyptic number.

105243313619 is a deficient number, since it is larger than the sum of its proper divisors (132050125).

105243313619 is an equidigital number, since it uses as much as digits as its factorization.

105243313619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132050124.

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 105243313619 in words is "one hundred five billion, two hundred forty-three million, three hundred thirteen thousand, six hundred nineteen".