1323431245 has 8 divisors (see below), whose sum is σ = 1588673016. Its totient is φ = 1058374656.

The previous prime is 1323431227. The next prime is 1323431273. The reversal of 1323431245 is 5421343231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 55145476 + 1268285769 = 7426^2 + 35613^2 .

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 1323431245 - 2⁷ = 1323431117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30052 + ... + 59581.

It is an arithmetic number, because the mean of its divisors is an integer number (198584127).

Almost surely, 2^1323431245 is an apocalyptic number.

It is an amenable number.

1323431245 is a deficient number, since it is larger than the sum of its proper divisors (265241771).

1323431245 is an equidigital number, since it uses as much as digits as its factorization.

1323431245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92591.

The product of its digits is 8640, while the sum is 28.

The square root of 1323431245 is about 36378.9945572991. The cubic root of 1323431245 is about 1097.9109787560.

Adding to 1323431245 its reverse (5421343231), we get a palindrome (6744774476).

The spelling of 1323431245 in words is "one billion, three hundred twenty-three million, four hundred thirty-one thousand, two hundred forty-five".