320423361356 has 24 divisors (see below), whose sum is σ = 643505851296. Its totient is φ = 136754484480.

The previous prime is 320423361337. The next prime is 320423361389. The reversal of 320423361356 is 653163324023.

It is a super-2 number, since 2×320423361356² (a number of 24 digits) contains 22 as substring.

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, 23735351 + ... + 23748846.

It is an arithmetic number, because the mean of its divisors is an integer number (26812743804).

Almost surely, 2^320423361356 is an apocalyptic number.

It is an amenable number.

320423361356 is an abundant number, since it is smaller than the sum of its proper divisors (323082489940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320423361356 is a wasteful number, since it uses less digits than its factorization.

320423361356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47484449 (or 47484447 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 38.

Adding to 320423361356 its reverse (653163324023), we get a palindrome (973586685379).

The spelling of 320423361356 in words is "three hundred twenty billion, four hundred twenty-three million, three hundred sixty-one thousand, three hundred fifty-six".