12311023112233 has 4 divisors (see below), whose sum is σ = 12311101792708. Its totient is φ = 12310944431760.

The previous prime is 12311023112221. The next prime is 12311023112249. The reversal of 12311023112233 is 33221132011321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10108565283609 + 2202457828624 = 3179397^2 + 1484068^2 .

It is a cyclic number.

It is not a de Polignac number, because 12311023112233 - 2²¹ = 12311021015081 is a prime.

It is a super-2 number, since 2×12311023112233² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12311023112198 and 12311023112207.

It is not an unprimeable number, because it can be changed into a prime (12311023112273) 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, 39105066 + ... + 39418627.

It is an arithmetic number, because the mean of its divisors is an integer number (3077775448177).

Almost surely, 2^{12311023112233} is an apocalyptic number.

It is an amenable number.

12311023112233 is a deficient number, since it is larger than the sum of its proper divisors (78680475).

12311023112233 is an equidigital number, since it uses as much as digits as its factorization.

12311023112233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78680474.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12311023112233 its reverse (33221132011321), we get a palindrome (45532155123554).

The spelling of 12311023112233 in words is "twelve trillion, three hundred eleven billion, twenty-three million, one hundred twelve thousand, two hundred thirty-three".