105620111143 has 4 divisors (see below), whose sum is σ = 105632080128. Its totient is φ = 105608142160.

The previous prime is 105620111141. The next prime is 105620111147. The reversal of 105620111143 is 341111026501.

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 105620111143 - 2¹ = 105620111141 is a prime.

It is a super-2 number, since 2×105620111143² (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 (105620111141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5971246 + ... + 5988907.

It is an arithmetic number, because the mean of its divisors is an integer number (26408020032).

Almost surely, 2^105620111143 is an apocalyptic number.

105620111143 is a deficient number, since it is larger than the sum of its proper divisors (11968985).

105620111143 is an equidigital number, since it uses as much as digits as its factorization.

105620111143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11968984.

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 105620111143 its reverse (341111026501), we get a palindrome (446731137644).

The spelling of 105620111143 in words is "one hundred five billion, six hundred twenty million, one hundred eleven thousand, one hundred forty-three".