320213352340 has 48 divisors (see below), whose sum is σ = 768992603904. Its totient is φ = 109718784000.

The previous prime is 320213352337. The next prime is 320213352343. The reversal of 320213352340 is 43253312023.

It is an interprime number because it is at equal distance from previous prime (320213352337) and next prime (320213352343).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 320213352299 and 320213352308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320213352343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490176 + ... + 938455.

It is an arithmetic number, because the mean of its divisors is an integer number (16020679248).

Almost surely, 2^320213352340 is an apocalyptic number.

It is an amenable number.

320213352340 is an abundant number, since it is smaller than the sum of its proper divisors (448779251564).

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

320213352340 is a wasteful number, since it uses less digits than its factorization.

320213352340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430248 (or 1430246 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 320213352340 its reverse (43253312023), we get a palindrome (363466664363).

The spelling of 320213352340 in words is "three hundred twenty billion, two hundred thirteen million, three hundred fifty-two thousand, three hundred forty".