12344433231 has 8 divisors (see below), whose sum is σ = 17725340080. Its totient is φ = 7596574272.

The previous prime is 12344433223. The next prime is 12344433239. The reversal of 12344433231 is 13233444321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12344433223) and next prime (12344433239).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12344433231 - 2³ = 12344433223 is a prime.

It is a super-2 number, since 2×12344433231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344433239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158261926 + ... + 158262003.

It is an arithmetic number, because the mean of its divisors is an integer number (2215667510).

Almost surely, 2^12344433231 is an apocalyptic number.

12344433231 is a deficient number, since it is larger than the sum of its proper divisors (5380906849).

12344433231 is a wasteful number, since it uses less digits than its factorization.

12344433231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316523945.

The product of its digits is 20736, while the sum is 30.

Adding to 12344433231 its reverse (13233444321), we get a palindrome (25577877552).

The spelling of 12344433231 in words is "twelve billion, three hundred forty-four million, four hundred thirty-three thousand, two hundred thirty-one".