12233312011 has 4 divisors (see below), whose sum is σ = 12233770272. Its totient is φ = 12232853752.

The previous prime is 12233311997. The next prime is 12233312053. The reversal of 12233312011 is 11021333221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11021333221 = 691 ⋅15949831.

It is a cyclic number.

It is not a de Polignac number, because 12233312011 - 2⁹ = 12233311499 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 12233312011.

It is not an unprimeable number, because it can be changed into a prime (12233312111) 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, 186436 + ... + 243361.

It is an arithmetic number, because the mean of its divisors is an integer number (3058442568).

Almost surely, 2^12233312011 is an apocalyptic number.

12233312011 is a deficient number, since it is larger than the sum of its proper divisors (458261).

12233312011 is an equidigital number, since it uses as much as digits as its factorization.

12233312011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458260.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12233312011 its reverse (11021333221), we get a palindrome (23254645232).

The spelling of 12233312011 in words is "twelve billion, two hundred thirty-three million, three hundred twelve thousand, eleven".