13103442 has 24 divisors (see below), whose sum is σ = 30972240. Its totient is φ = 3970680.

The previous prime is 13103423. The next prime is 13103443. The reversal of 13103442 is 24430131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13103443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32892 + ... + 33287.

It is an arithmetic number, because the mean of its divisors is an integer number (1290510).

Almost surely, 2^13103442 is an apocalyptic number.

13103442 is an abundant number, since it is smaller than the sum of its proper divisors (17868798).

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

13103442 is a wasteful number, since it uses less digits than its factorization.

13103442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66198 (or 66195 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13103442 is about 3619.8676771396. The cubic root of 13103442 is about 235.7554802461.

Adding to 13103442 its reverse (24430131), we get a palindrome (37533573).

The spelling of 13103442 in words is "thirteen million, one hundred three thousand, four hundred forty-two".