13311444021020 has 24 divisors (see below), whose sum is σ = 28242218349744. Its totient is φ = 5269685054976.

The previous prime is 13311444020947. The next prime is 13311444021049. The reversal of 13311444021020 is 2012044411331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3430782602 + ... + 3430786481.

It is an arithmetic number, because the mean of its divisors is an integer number (1176759097906).

Almost surely, 2^{13311444021020} is an apocalyptic number.

13311444021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13311444021020 is an abundant number, since it is smaller than the sum of its proper divisors (14930774328724).

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

13311444021020 is a wasteful number, since it uses less digits than its factorization.

13311444021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6861569189 (or 6861569187 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 13311444021020 its reverse (2012044411331), we get a palindrome (15323488432351).

The spelling of 13311444021020 in words is "thirteen trillion, three hundred eleven billion, four hundred forty-four million, twenty-one thousand, twenty".