13111002442020 has 384 divisors, whose sum is σ = 42936179328000. Its totient is φ = 2927751856128.

The previous prime is 13111002442009. The next prime is 13111002442037. The reversal of 13111002442020 is 2024420011131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1074930562 + ... + 1074942758.

It is an arithmetic number, because the mean of its divisors is an integer number (111812967000).

Almost surely, 2^{13111002442020} is an apocalyptic number.

13111002442020 is a gapful number since it is divisible by the number (10) 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 13111002442020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21468089664000).

13111002442020 is an abundant number, since it is smaller than the sum of its proper divisors (29825176885980).

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

13111002442020 is a wasteful number, since it uses less digits than its factorization.

13111002442020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12647 (or 12645 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 13111002442020 its reverse (2024420011131), we get a palindrome (15135422453151).

The spelling of 13111002442020 in words is "thirteen trillion, one hundred eleven billion, two million, four hundred forty-two thousand, twenty".