20102331320320 has 48 divisors (see below), whose sum is σ = 48233816483580. Its totient is φ = 8040932524032.

The previous prime is 20102331320273. The next prime is 20102331320327. The reversal of 20102331320320 is 2302313320102.

It can be written as a sum of positive squares in 2 ways, for example, as 19985334486016 + 116996834304 = 4470496^2 + 342048^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20102331320291 and 20102331320300.

It is not an unprimeable number, because it can be changed into a prime (20102331320327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981548907 + ... + 981569386.

Almost surely, 2^{20102331320320} is an apocalyptic number.

20102331320320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102331320320 is an abundant number, since it is smaller than the sum of its proper divisors (28131485163260).

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

20102331320320 is an equidigital number, since it uses as much as digits as its factorization.

20102331320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963118320 (or 1963118300 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20102331320320 its reverse (2302313320102), we get a palindrome (22404644640422).

The spelling of 20102331320320 in words is "twenty trillion, one hundred two billion, three hundred thirty-one million, three hundred twenty thousand, three hundred twenty".