1323133430 has 16 divisors (see below), whose sum is σ = 2386422000. Its totient is φ = 528190752.

The previous prime is 1323133421. The next prime is 1323133433. The reversal of 1323133430 is 343313231.

It is a junction number, because it is equal to n+sod(n) for n = 1323133396 and 1323133405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323133433) 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, 127589 + ... + 137568.

It is an arithmetic number, because the mean of its divisors is an integer number (149151375).

Almost surely, 2^1323133430 is an apocalyptic number.

1323133430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323133430 is a deficient number, since it is larger than the sum of its proper divisors (1063288570).

1323133430 is a wasteful number, since it uses less digits than its factorization.

1323133430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265663.

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

The square root of 1323133430 is about 36374.9010995219. The cubic root of 1323133430 is about 1097.8286173718.

Adding to 1323133430 its reverse (343313231), we get a palindrome (1666446661).

The spelling of 1323133430 in words is "one billion, three hundred twenty-three million, one hundred thirty-three thousand, four hundred thirty".