13403103444 has 72 divisors (see below), whose sum is σ = 35507996160. Its totient is φ = 4254731712.

The previous prime is 13403103403. The next prime is 13403103457. The reversal of 13403103444 is 44430130431.

13403103444 is a `hidden beast` number, since 1 + 3 + 4 + 0 + 310 + 344 + 4 = 666.

It is a super-2 number, since 2×13403103444² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154269 + ... + 224955.

Almost surely, 2^13403103444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13403103444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17753998080).

13403103444 is an abundant number, since it is smaller than the sum of its proper divisors (22104892716).

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

13403103444 is a wasteful number, since it uses less digits than its factorization.

13403103444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70949 (or 70944 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 13403103444 its reverse (44430130431), we get a palindrome (57833233875).

The spelling of 13403103444 in words is "thirteen billion, four hundred three million, one hundred three thousand, four hundred forty-four".