320423341312 has 18 divisors (see below), whose sum is σ = 639595029458. Its totient is φ = 160211670528.

The previous prime is 320423341309. The next prime is 320423341339. The reversal of 320423341312 is 213143324023.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 257755228416 + 62668112896 = 507696^2 + 250336^2 .

It is a super-2 number, since 2×320423341312² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625826583 + ... + 625827094.

Almost surely, 2^320423341312 is an apocalyptic number.

320423341312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

320423341312 is a deficient number, since it is larger than the sum of its proper divisors (319171688146).

320423341312 is an equidigital number, since it uses as much as digits as its factorization.

320423341312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251653693 (or 1251653679 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 320423341312 its reverse (213143324023), we get a palindrome (533566665335).

The spelling of 320423341312 in words is "three hundred twenty billion, four hundred twenty-three million, three hundred forty-one thousand, three hundred twelve".