11213105623 has 2 divisors, whose sum is σ = 11213105624. Its totient is φ = 11213105622.

The previous prime is 11213105611. The next prime is 11213105627. The reversal of 11213105623 is 32650131211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11213105623 - 2⁵ = 11213105591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11213105627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606552811 + 5606552812.

It is an arithmetic number, because the mean of its divisors is an integer number (5606552812).

Almost surely, 2^11213105623 is an apocalyptic number.

11213105623 is a deficient number, since it is larger than the sum of its proper divisors (1).

11213105623 is an equidigital number, since it uses as much as digits as its factorization.

11213105623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 11213105623 its reverse (32650131211), we get a palindrome (43863236834).

The spelling of 11213105623 in words is "eleven billion, two hundred thirteen million, one hundred five thousand, six hundred twenty-three".