13021324 has 24 divisors (see below), whose sum is σ = 23270688. Its totient is φ = 6374400.

The previous prime is 13021277. The next prime is 13021331. The reversal of 13021324 is 42312031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13021298 and 13021307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67372 + ... + 67564.

It is an arithmetic number, because the mean of its divisors is an integer number (969612).

Almost surely, 2^13021324 is an apocalyptic number.

It is an amenable number.

13021324 is a deficient number, since it is larger than the sum of its proper divisors (10249364).

13021324 is a wasteful number, since it uses less digits than its factorization.

13021324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 463 counting only the distinct ones).

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

The square root of 13021324 is about 3608.5071705624. The cubic root of 13021324 is about 235.2619622872.

Adding to 13021324 its reverse (42312031), we get a palindrome (55333355).

The spelling of 13021324 in words is "thirteen million, twenty-one thousand, three hundred twenty-four".