20321313110304 has 96 divisors (see below), whose sum is σ = 53877549841920. Its totient is φ = 6705963264000.

The previous prime is 20321313110291. The next prime is 20321313110323. The reversal of 20321313110304 is 40301131312302.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91409524 + ... + 91631564.

It is an arithmetic number, because the mean of its divisors is an integer number (561224477520).

Almost surely, 2^{20321313110304} is an apocalyptic number.

20321313110304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20321313110304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26938774920960).

20321313110304 is an abundant number, since it is smaller than the sum of its proper divisors (33556236731616).

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

20321313110304 is a wasteful number, since it uses less digits than its factorization.

20321313110304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231594 (or 231586 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 20321313110304 its reverse (40301131312302), we get a palindrome (60622444422606).

The spelling of 20321313110304 in words is "twenty trillion, three hundred twenty-one billion, three hundred thirteen million, one hundred ten thousand, three hundred four".