12318813211 has 4 divisors (see below), whose sum is σ = 12377196424. Its totient is φ = 12260430000.

The previous prime is 12318813209. The next prime is 12318813289. The reversal of 12318813211 is 11231881321.

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

It is a cyclic number.

It is not a de Polignac number, because 12318813211 - 2¹ = 12318813209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12318813811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29191290 + ... + 29191711.

It is an arithmetic number, because the mean of its divisors is an integer number (3094299106).

Almost surely, 2^12318813211 is an apocalyptic number.

12318813211 is a deficient number, since it is larger than the sum of its proper divisors (58383213).

12318813211 is an equidigital number, since it uses as much as digits as its factorization.

12318813211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58383212.

The product of its digits is 2304, while the sum is 31.

The spelling of 12318813211 in words is "twelve billion, three hundred eighteen million, eight hundred thirteen thousand, two hundred eleven".