1232320313 has 8 divisors (see below), whose sum is σ = 1442716800. Its totient is φ = 1030511520.

The previous prime is 1232320303. The next prime is 1232320321. The reversal of 1232320313 is 3130232321.

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 1232320313 - 2⁸ = 1232320057 is a prime.

It is a super-2 number, since 2×1232320313² = 3037226707664835938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1232320303) 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, 2146613 + ... + 2147186.

It is an arithmetic number, because the mean of its divisors is an integer number (180339600).

Almost surely, 2^1232320313 is an apocalyptic number.

It is an amenable number.

1232320313 is a deficient number, since it is larger than the sum of its proper divisors (210396487).

1232320313 is an equidigital number, since it uses as much as digits as its factorization.

1232320313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293847.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1232320313 is about 35104.4201347921. The cubic root of 1232320313 is about 1072.1145806580.

Adding to 1232320313 its reverse (3130232321), we get a palindrome (4362552634).

The spelling of 1232320313 in words is "one billion, two hundred thirty-two million, three hundred twenty thousand, three hundred thirteen".