1323431433 has 8 divisors (see below), whose sum is σ = 1960639200. Its totient is φ = 882287604.

The previous prime is 1323431411. The next prime is 1323431437. The reversal of 1323431433 is 3341343231.

1323431433 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1323431433 - 2⁸ = 1323431177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 49015979 = 1323431433 / (1 + 3 + 2 + 3 + 4 + 3 + 1 + 4 + 3 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 1323431397 and 1323431406.

It is not an unprimeable number, because it can be changed into a prime (1323431437) 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, 24507963 + ... + 24508016.

It is an arithmetic number, because the mean of its divisors is an integer number (245079900).

Almost surely, 2^1323431433 is an apocalyptic number.

It is an amenable number.

1323431433 is a deficient number, since it is larger than the sum of its proper divisors (637207767).

1323431433 is an equidigital number, since it uses as much as digits as its factorization.

1323431433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49015988 (or 49015982 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

The square root of 1323431433 is about 36378.9971412077. The cubic root of 1323431433 is about 1097.9110307439.

Adding to 1323431433 its reverse (3341343231), we get a palindrome (4664774664).

The spelling of 1323431433 in words is "one billion, three hundred twenty-three million, four hundred thirty-one thousand, four hundred thirty-three".