105511223 has 2 divisors, whose sum is σ = 105511224. Its totient is φ = 105511222.

The previous prime is 105511213. The next prime is 105511229. The reversal of 105511223 is 322115501.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105511223 - 2⁸ = 105510967 is a prime.

It is a super-2 number, since 2×105511223² = 22265236357911458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105511195 and 105511204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105511229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52755611 + 52755612.

It is an arithmetic number, because the mean of its divisors is an integer number (52755612).

Almost surely, 2^105511223 is an apocalyptic number.

105511223 is a deficient number, since it is larger than the sum of its proper divisors (1).

105511223 is an equidigital number, since it uses as much as digits as its factorization.

105511223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 105511223 is about 10271.8656046504. The cubic root of 105511223 is about 472.5338075714.

Adding to 105511223 its reverse (322115501), we get a palindrome (427626724).

The spelling of 105511223 in words is "one hundred five million, five hundred eleven thousand, two hundred twenty-three".