13321042 has 12 divisors (see below), whose sum is σ = 23244030. Its totient is φ = 5708976.

The previous prime is 13321027. The next prime is 13321051. The reversal of 13321042 is 24012331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8520561 + 4800481 = 2919^2 + 2191^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67867 + ... + 68062.

Almost surely, 2^13321042 is an apocalyptic number.

13321042 is a deficient number, since it is larger than the sum of its proper divisors (9922988).

13321042 is a wasteful number, since it uses less digits than its factorization.

13321042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135945 (or 135938 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13321042 is about 3649.8002685079. The cubic root of 13321042 is about 237.0533329623.

Adding to 13321042 its reverse (24012331), we get a palindrome (37333373).

The spelling of 13321042 in words is "thirteen million, three hundred twenty-one thousand, forty-two".