20313323300000 has 144 divisors (see below), whose sum is σ = 50806087749144. Its totient is φ = 7992124800000.

The previous prime is 20313323299967. The next prime is 20313323300059. The reversal of 20313323300000 is 332331302.

It can be written as a sum of positive squares in 12 ways, for example, as 8465050594576 + 11848272705424 = 2909476^2 + 3442132^2 .

It is a super-2 number, since 2×20313323300000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 23 ways as a sum of consecutive naturals, for example, 4434974 + ... + 7765026.

Almost surely, 2^{20313323300000} is an apocalyptic number.

20313323300000 is a gapful number since it is divisible by the number (20) 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 20313323300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25403043874572).

20313323300000 is an abundant number, since it is smaller than the sum of its proper divisors (30492764449144).

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

20313323300000 is an frugal number, since it uses more digits than its factorization.

20313323300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3330149 (or 3330121 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20313323300000 its reverse (332331302), we get a palindrome (20313655631302).

The spelling of 20313323300000 in words is "twenty trillion, three hundred thirteen billion, three hundred twenty-three million, three hundred thousand".