2105120223 has 12 divisors (see below), whose sum is σ = 3054367680. Its totient is φ = 1397118816.

The previous prime is 2105120159. The next prime is 2105120233. The reversal of 2105120223 is 3220215012.

It is not a de Polignac number, because 2105120223 - 2⁶ = 2105120159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2105120196 and 2105120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105120233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522438 + ... + 526451.

It is an arithmetic number, because the mean of its divisors is an integer number (254530640).

Almost surely, 2^2105120223 is an apocalyptic number.

2105120223 is a deficient number, since it is larger than the sum of its proper divisors (949247457).

2105120223 is a wasteful number, since it uses less digits than its factorization.

2105120223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049118 (or 1049115 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2105120223 is about 45881.5891507694. The cubic root of 2105120223 is about 1281.6190902456.

Adding to 2105120223 its reverse (3220215012), we get a palindrome (5325335235).

The spelling of 2105120223 in words is "two billion, one hundred five million, one hundred twenty thousand, two hundred twenty-three".