12233244431 has 4 divisors (see below), whose sum is σ = 12241782672. Its totient is φ = 12224706192.

The previous prime is 12233244391. The next prime is 12233244433. The reversal of 12233244431 is 13444233221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13444233221 = 29 ⋅463594249.

It is a cyclic number.

It is not a de Polignac number, because 12233244431 - 2⁶ = 12233244367 is a prime.

It is a super-2 number, since 2×12233244431² (a number of 21 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 = 12233244394 and 12233244403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12233244433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4266971 + ... + 4269836.

It is an arithmetic number, because the mean of its divisors is an integer number (3060445668).

Almost surely, 2^12233244431 is an apocalyptic number.

12233244431 is a deficient number, since it is larger than the sum of its proper divisors (8538241).

12233244431 is an equidigital number, since it uses as much as digits as its factorization.

12233244431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8538240.

The product of its digits is 13824, while the sum is 29.

Adding to 12233244431 its reverse (13444233221), we get a palindrome (25677477652).

The spelling of 12233244431 in words is "twelve billion, two hundred thirty-three million, two hundred forty-four thousand, four hundred thirty-one".