20320451313322 has 8 divisors (see below), whose sum is σ = 31463924614272. Its totient is φ = 9832476441900.

The previous prime is 20320451313319. The next prime is 20320451313391. The reversal of 20320451313322 is 22331315402302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20320451313322² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163874607304 + ... + 163874607427.

It is an arithmetic number, because the mean of its divisors is an integer number (3932990576784).

Almost surely, 2^{20320451313322} is an apocalyptic number.

20320451313322 is a deficient number, since it is larger than the sum of its proper divisors (11143473300950).

20320451313322 is a wasteful number, since it uses less digits than its factorization.

20320451313322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327749214764.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 20320451313322 its reverse (22331315402302), we get a palindrome (42651766715624).

The spelling of 20320451313322 in words is "twenty trillion, three hundred twenty billion, four hundred fifty-one million, three hundred thirteen thousand, three hundred twenty-two".