20403102012244 has 24 divisors (see below), whose sum is σ = 41674421134080. Its totient is φ = 8558140053216.

The previous prime is 20403102012239. The next prime is 20403102012247. The reversal of 20403102012244 is 44221020130402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20403102012247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7751937139 + ... + 7751939770.

It is an arithmetic number, because the mean of its divisors is an integer number (1736434213920).

Almost surely, 2^{20403102012244} is an apocalyptic number.

It is an amenable number.

20403102012244 is an abundant number, since it is smaller than the sum of its proper divisors (21271319121836).

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

20403102012244 is a wasteful number, since it uses less digits than its factorization.

20403102012244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15503876967 (or 15503876965 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20403102012244 its reverse (44221020130402), we get a palindrome (64624122142646).

The spelling of 20403102012244 in words is "twenty trillion, four hundred three billion, one hundred two million, twelve thousand, two hundred forty-four".