105611023 has 6 divisors (see below), whose sum is σ = 122853696. Its totient is φ = 90523692.

The previous prime is 105610997. The next prime is 105611027. The reversal of 105611023 is 320116501.

It is a de Polignac number, because none of the positive numbers 2^k-105611023 is a prime.

It is a super-2 number, since 2×105611023² = 22307376358213058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105611027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1077615 + ... + 1077712.

It is an arithmetic number, because the mean of its divisors is an integer number (20475616).

Almost surely, 2^105611023 is an apocalyptic number.

105611023 is a deficient number, since it is larger than the sum of its proper divisors (17242673).

105611023 is an equidigital number, since it uses as much as digits as its factorization.

105611023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155341 (or 2155334 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 105611023 is about 10276.7223860529. The cubic root of 105611023 is about 472.6827459551.

Adding to 105611023 its reverse (320116501), we get a palindrome (425727524).

The spelling of 105611023 in words is "one hundred five million, six hundred eleven thousand, twenty-three".