1323130433 has 4 divisors (see below), whose sum is σ = 1323419568. Its totient is φ = 1322841300.

The previous prime is 1323130429. The next prime is 1323130439. The reversal of 1323130433 is 3340313231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3340313231 = 2011 ⋅1661021.

It is a cyclic number.

It is not a de Polignac number, because 1323130433 - 2² = 1323130429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323130399 and 1323130408.

It is not an unprimeable number, because it can be changed into a prime (1323130439) 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, 137591 + ... + 146892.

It is an arithmetic number, because the mean of its divisors is an integer number (330854892).

Almost surely, 2^1323130433 is an apocalyptic number.

It is an amenable number.

1323130433 is a deficient number, since it is larger than the sum of its proper divisors (289135).

1323130433 is an equidigital number, since it uses as much as digits as its factorization.

1323130433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289134.

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 1323130433 is about 36374.8599035103. The cubic root of 1323130433 is about 1097.8277884821.

Adding to 1323130433 its reverse (3340313231), we get a palindrome (4663443664).

The spelling of 1323130433 in words is "one billion, three hundred twenty-three million, one hundred thirty thousand, four hundred thirty-three".