20013107113344 has 128 divisors (see below), whose sum is σ = 53371126010880. Its totient is φ = 6644567255040.

The previous prime is 20013107113333. The next prime is 20013107113397. The reversal of 20013107113344 is 44331170131002.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

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, 105246577 + ... + 105436559.

It is an arithmetic number, because the mean of its divisors is an integer number (416961921960).

Almost surely, 2^{20013107113344} is an apocalyptic number.

20013107113344 is a gapful number since it is divisible by the number (24) 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 20013107113344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26685563005440).

20013107113344 is an abundant number, since it is smaller than the sum of its proper divisors (33358018897536).

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

20013107113344 is a wasteful number, since it uses less digits than its factorization.

20013107113344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191088 (or 191076 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

Adding to 20013107113344 its reverse (44331170131002), we get a palindrome (64344277244346).

The spelling of 20013107113344 in words is "twenty trillion, thirteen billion, one hundred seven million, one hundred thirteen thousand, three hundred forty-four".