20312321322 has 8 divisors (see below), whose sum is σ = 40624642656. Its totient is φ = 6770773772.

The previous prime is 20312321287. The next prime is 20312321371. The reversal of 20312321322 is 22312321302.

It is a happy number.

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

20312321322 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1692693438 + ... + 1692693449.

It is an arithmetic number, because the mean of its divisors is an integer number (5078080332).

Almost surely, 2^20312321322 is an apocalyptic number.

20312321322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20312321322 is a wasteful number, since it uses less digits than its factorization.

20312321322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385386892.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20312321322 its reverse (22312321302), we get a palindrome (42624642624).

The spelling of 20312321322 in words is "twenty billion, three hundred twelve million, three hundred twenty-one thousand, three hundred twenty-two".