20030113310312 has 64 divisors (see below), whose sum is σ = 43984881964800. Its totient is φ = 8371847784960.

The previous prime is 20030113310303. The next prime is 20030113310369. The reversal of 20030113310312 is 21301331103002.

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, 4563389 + ... + 7802867.

It is an arithmetic number, because the mean of its divisors is an integer number (687263780700).

Almost surely, 2^{20030113310312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20030113310312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21992440982400).

20030113310312 is an abundant number, since it is smaller than the sum of its proper divisors (23954768654488).

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

20030113310312 is a wasteful number, since it uses less digits than its factorization.

20030113310312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242226 (or 3242222 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20030113310312 its reverse (21301331103002), we get a palindrome (41331444413314).

The spelling of 20030113310312 in words is "twenty trillion, thirty billion, one hundred thirteen million, three hundred ten thousand, three hundred twelve".