1323431193 has 16 divisors (see below), whose sum is σ = 2021483520. Its totient is φ = 754436496.

The previous prime is 1323431189. The next prime is 1323431203. The reversal of 1323431193 is 3911343231.

It is not a de Polignac number, because 1323431193 - 2² = 1323431189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1323431193.

It is not an unprimeable number, because it can be changed into a prime (1323441193) 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 15 ways as a sum of consecutive naturals, for example, 66405 + ... + 84002.

It is an arithmetic number, because the mean of its divisors is an integer number (126342720).

Almost surely, 2^1323431193 is an apocalyptic number.

It is an amenable number.

1323431193 is a deficient number, since it is larger than the sum of its proper divisors (698052327).

1323431193 is a wasteful number, since it uses less digits than its factorization.

1323431193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150836.

The product of its digits is 5832, while the sum is 30.

The square root of 1323431193 is about 36378.9938426010. The cubic root of 1323431193 is about 1097.9109643764.

The spelling of 1323431193 in words is "one billion, three hundred twenty-three million, four hundred thirty-one thousand, one hundred ninety-three".