105000561111 has 8 divisors (see below), whose sum is σ = 143784552304. Its totient is φ = 68108472000.

The previous prime is 105000561103. The next prime is 105000561143. The reversal of 105000561111 is 111165000501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105000561111 - 2³ = 105000561103 is a prime.

It is a super-2 number, since 2×105000561111² (a number of 23 digits) 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 (105000561161) 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 7 ways as a sum of consecutive naturals, for example, 472975390 + ... + 472975611.

It is an arithmetic number, because the mean of its divisors is an integer number (17973069038).

Almost surely, 2^105000561111 is an apocalyptic number.

105000561111 is a deficient number, since it is larger than the sum of its proper divisors (38783991193).

105000561111 is an equidigital number, since it uses as much as digits as its factorization.

105000561111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945951041.

The product of its (nonzero) digits is 150, while the sum is 21.

Adding to 105000561111 its reverse (111165000501), we get a palindrome (216165561612).

The spelling of 105000561111 in words is "one hundred five billion, five hundred sixty-one thousand, one hundred eleven".