11423205211 has 8 divisors (see below), whose sum is σ = 12530529648. Its totient is φ = 10327356000.

The previous prime is 11423205191. The next prime is 11423205217. The reversal of 11423205211 is 11250232411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11423205211 - 2⁹ = 11423204699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11423205217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2866720 + ... + 2870701.

It is an arithmetic number, because the mean of its divisors is an integer number (1566316206).

Almost surely, 2^11423205211 is an apocalyptic number.

11423205211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11423205211 is a deficient number, since it is larger than the sum of its proper divisors (1107324437).

11423205211 is a wasteful number, since it uses less digits than its factorization.

11423205211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5737613.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 11423205211 its reverse (11250232411), we get a palindrome (22673437622).

The spelling of 11423205211 in words is "eleven billion, four hundred twenty-three million, two hundred five thousand, two hundred eleven".