13123344 has 40 divisors (see below), whose sum is σ = 36511552. Its totient is φ = 4037760.

The previous prime is 13123343. The next prime is 13123349. The reversal of 13123344 is 44332131.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 13123344.

It is not an unprimeable number, because it can be changed into a prime (13123343) 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, 9892 + ... + 11139.

Almost surely, 2^13123344 is an apocalyptic number.

It is an amenable number.

13123344 is an abundant number, since it is smaller than the sum of its proper divisors (23388208).

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

13123344 is a wasteful number, since it uses less digits than its factorization.

13123344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21055 (or 21049 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 13123344 is about 3622.6156296245. The cubic root of 13123344 is about 235.8747779621.

Adding to 13123344 its reverse (44332131), we get a palindrome (57455475).

It can be divided in two parts, 1312 and 3344, that added together give a triangular number (4656 = T₉₆).

The spelling of 13123344 in words is "thirteen million, one hundred twenty-three thousand, three hundred forty-four".