13213112004441 has 10 divisors (see below), whose sum is σ = 19738105587002. Its totient is φ = 8808741336240.

The previous prime is 13213112004437. The next prime is 13213112004479. The reversal of 13213112004441 is 14440021131231.

It is a happy number.

13213112004441 is a `hidden beast` number, since 1 + 3 + 2 + 1 + 3 + 11 + 200 + 4 + 441 = 666.

13213112004441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13202176910400 + 10935094041 = 3633480^2 + 104571^2 .

It is not a de Polignac number, because 13213112004441 - 2² = 13213112004437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13213112074441) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 81562419700 + ... + 81562419861.

Almost surely, 2^{13213112004441} is an apocalyptic number.

It is an amenable number.

13213112004441 is a deficient number, since it is larger than the sum of its proper divisors (6524993582561).

13213112004441 is an equidigital number, since it uses as much as digits as its factorization.

13213112004441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163124839573 (or 163124839564 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 13213112004441 its reverse (14440021131231), we get a palindrome (27653133135672).

The spelling of 13213112004441 in words is "thirteen trillion, two hundred thirteen billion, one hundred twelve million, four thousand, four hundred forty-one".