13311200020 has 24 divisors (see below), whose sum is σ = 27970664904. Its totient is φ = 5321214336.

The previous prime is 13311200011. The next prime is 13311200027. The reversal of 13311200020 is 2000211331.

It can be written as a sum of positive squares in 4 ways, for example, as 339812356 + 12971387664 = 18434^2 + 113892^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311200027) 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, 170547 + ... + 236026.

It is an arithmetic number, because the mean of its divisors is an integer number (1165444371).

Almost surely, 2^13311200020 is an apocalyptic number.

13311200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13311200020 is an abundant number, since it is smaller than the sum of its proper divisors (14659464884).

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

13311200020 is a wasteful number, since it uses less digits than its factorization.

13311200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408219 (or 408217 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 13311200020 its reverse (2000211331), we get a palindrome (15311411351).

The spelling of 13311200020 in words is "thirteen billion, three hundred eleven million, two hundred thousand, twenty".