2623213105 has 4 divisors (see below), whose sum is σ = 3147855732. Its totient is φ = 2098570480.

The previous prime is 2623213079. The next prime is 2623213129. The reversal of 2623213105 is 5013123262.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 433347489 + 2189865616 = 20817^2 + 46796^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2623213105 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2623213105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262321306 + ... + 262321315.

It is an arithmetic number, because the mean of its divisors is an integer number (786963933).

Almost surely, 2^2623213105 is an apocalyptic number.

It is an amenable number.

2623213105 is a deficient number, since it is larger than the sum of its proper divisors (524642627).

2623213105 is an equidigital number, since it uses as much as digits as its factorization.

2623213105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524642626.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2623213105 is about 51217.3125515191. The cubic root of 2623213105 is about 1379.1490071194.

Adding to 2623213105 its reverse (5013123262), we get a palindrome (7636336367).

The spelling of 2623213105 in words is "two billion, six hundred twenty-three million, two hundred thirteen thousand, one hundred five".