20103132003312 has 80 divisors (see below), whose sum is σ = 52699689504000. Its totient is φ = 6602254041600.

The previous prime is 20103132003307. The next prime is 20103132003319. The reversal of 20103132003312 is 21330023130102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103132003319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3141012 + ... + 7076172.

It is an arithmetic number, because the mean of its divisors is an integer number (658746118800).

Almost surely, 2^{20103132003312} 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 20103132003312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26349844752000).

20103132003312 is an abundant number, since it is smaller than the sum of its proper divisors (32596557500688).

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

20103132003312 is a wasteful number, since it uses less digits than its factorization.

20103132003312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936742 (or 3936736 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20103132003312 its reverse (21330023130102), we get a palindrome (41433155133414).

The spelling of 20103132003312 in words is "twenty trillion, one hundred three billion, one hundred thirty-two million, three thousand, three hundred twelve".