10505605105111 has 4 divisors (see below), whose sum is σ = 10623645612000. Its totient is φ = 10387564598224.

The previous prime is 10505605105109. The next prime is 10505605105129. The reversal of 10505605105111 is 11150150650501.

10505605105111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10505605105111 - 2¹ = 10505605105109 is a prime.

It is a super-2 number, since 2×10505605105111² (a number of 27 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 (10505105105111) 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, 59020253311 + ... + 59020253488.

It is an arithmetic number, because the mean of its divisors is an integer number (2655911403000).

Almost surely, 2^{10505605105111} is an apocalyptic number.

10505605105111 is a deficient number, since it is larger than the sum of its proper divisors (118040506889).

10505605105111 is an equidigital number, since it uses as much as digits as its factorization.

10505605105111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118040506888.

The product of its (nonzero) digits is 3750, while the sum is 31.

Adding to 10505605105111 its reverse (11150150650501), we get a palindrome (21655755755612).

The spelling of 10505605105111 in words is "ten trillion, five hundred five billion, six hundred five million, one hundred five thousand, one hundred eleven".