1323131303 has 8 divisors (see below), whose sum is σ = 1442079408. Its totient is φ = 1206635904.

The previous prime is 1323131279. The next prime is 1323131317. The reversal of 1323131303 is 3031313231.

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

It is a cyclic number.

It is not a de Polignac number, because 1323131303 - 2¹⁸ = 1322869159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323131353) 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, 612050 + ... + 614207.

It is an arithmetic number, because the mean of its divisors is an integer number (180259926).

Almost surely, 2^1323131303 is an apocalyptic number.

1323131303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1323131303 is a deficient number, since it is larger than the sum of its proper divisors (118948105).

1323131303 is a wasteful number, since it uses less digits than its factorization.

1323131303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226353.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1323131303 is about 36374.8718623173. The cubic root of 1323131303 is about 1097.8280291009.

Adding to 1323131303 its reverse (3031313231), we get a palindrome (4354444534).

The spelling of 1323131303 in words is "one billion, three hundred twenty-three million, one hundred thirty-one thousand, three hundred three".