13211040020 has 24 divisors (see below), whose sum is σ = 27747904968. Its totient is φ = 5283516800.

The previous prime is 13211040019. The next prime is 13211040053. The reversal of 13211040020 is 2004011231.

It can be written as a sum of positive squares in 4 ways, for example, as 979564804 + 12231475216 = 31298^2 + 110596^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13211039977 and 13211040004.

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, 71330 + ... + 177510.

It is an arithmetic number, because the mean of its divisors is an integer number (1156162707).

Almost surely, 2^13211040020 is an apocalyptic number.

13211040020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13211040020 is an abundant number, since it is smaller than the sum of its proper divisors (14536864948).

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

13211040020 is a wasteful number, since it uses less digits than its factorization.

13211040020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112411 (or 112409 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 13211040020 its reverse (2004011231), we get a palindrome (15215051251).

The spelling of 13211040020 in words is "thirteen billion, two hundred eleven million, forty thousand, twenty".