13203120444 has 48 divisors (see below), whose sum is σ = 32446740480. Its totient is φ = 4167089280.

The previous prime is 13203120439. The next prime is 13203120451. The reversal of 13203120444 is 44402130231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421029 + ... + 451299.

It is an arithmetic number, because the mean of its divisors is an integer number (675973760).

Almost surely, 2^13203120444 is an apocalyptic number.

It is an amenable number.

13203120444 is an abundant number, since it is smaller than the sum of its proper divisors (19243620036).

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

13203120444 is a wasteful number, since it uses less digits than its factorization.

13203120444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32210 (or 32208 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 13203120444 its reverse (44402130231), we get a palindrome (57605250675).

The spelling of 13203120444 in words is "thirteen billion, two hundred three million, one hundred twenty thousand, four hundred forty-four".