1323131003 has 6 divisors (see below), whose sum is σ = 1370330364. Its totient is φ = 1277504984.

The previous prime is 1323130999. The next prime is 1323131039. The reversal of 1323131003 is 3001313231.

It is not a de Polignac number, because 1323131003 - 2² = 1323130999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323134003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 785801 + ... + 787482.

It is an arithmetic number, because the mean of its divisors is an integer number (228388394).

Almost surely, 2^1323131003 is an apocalyptic number.

1323131003 is a deficient number, since it is larger than the sum of its proper divisors (47199361).

1323131003 is an equidigital number, since it uses as much as digits as its factorization.

1323131003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573341 (or 1573312 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1323131003 is about 36374.8677385912. The cubic root of 1323131003 is about 1097.8279461289.

Adding to 1323131003 its reverse (3001313231), we get a palindrome (4324444234).

The spelling of 1323131003 in words is "one billion, three hundred twenty-three million, one hundred thirty-one thousand, three".