12321431433 has 6 divisors (see below), whose sum is σ = 17797623194. Its totient is φ = 8214287616.

The previous prime is 12321431413. The next prime is 12321431477. The reversal of 12321431433 is 33413412321.

It is a happy number.

12321431433 is a `hidden beast` number, since 12 + 3 + 214 + 3 + 1 + 433 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10187268624 + 2134162809 = 100932^2 + 46197^2 .

It is not a de Polignac number, because 12321431433 - 2⁹ = 12321430921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12321431397 and 12321431406.

It is not an unprimeable number, because it can be changed into a prime (12321431413) 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 5 ways as a sum of consecutive naturals, for example, 684523960 + ... + 684523977.

Almost surely, 2^12321431433 is an apocalyptic number.

It is an amenable number.

12321431433 is a deficient number, since it is larger than the sum of its proper divisors (5476191761).

12321431433 is a wasteful number, since it uses less digits than its factorization.

12321431433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369047943 (or 1369047940 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 12321431433 its reverse (33413412321), we get a palindrome (45734843754).

The spelling of 12321431433 in words is "twelve billion, three hundred twenty-one million, four hundred thirty-one thousand, four hundred thirty-three".