12011123233 has 4 divisors (see below), whose sum is σ = 12011694768. Its totient is φ = 12010551700.

The previous prime is 12011123209. The next prime is 12011123263. The reversal of 12011123233 is 33232111021.

12011123233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12011123233 - 2¹³ = 12011115041 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 12011123233.

It is not an unprimeable number, because it can be changed into a prime (12011123263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252991 + ... + 296692.

It is an arithmetic number, because the mean of its divisors is an integer number (3002923692).

Almost surely, 2^12011123233 is an apocalyptic number.

It is an amenable number.

12011123233 is a deficient number, since it is larger than the sum of its proper divisors (571535).

12011123233 is an equidigital number, since it uses as much as digits as its factorization.

12011123233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571534.

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

Adding to 12011123233 its reverse (33232111021), we get a palindrome (45243234254).

The spelling of 12011123233 in words is "twelve billion, eleven million, one hundred twenty-three thousand, two hundred thirty-three".