13521203324 has 12 divisors (see below), whose sum is σ = 23765435400. Its totient is φ = 6731078928.

The previous prime is 13521203323. The next prime is 13521203329. The reversal of 13521203324 is 42330212531.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13521203293 and 13521203302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13521203323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7379654 + ... + 7381485.

It is an arithmetic number, because the mean of its divisors is an integer number (1980452950).

Almost surely, 2^13521203324 is an apocalyptic number.

It is an amenable number.

13521203324 is a deficient number, since it is larger than the sum of its proper divisors (10244232076).

13521203324 is a wasteful number, since it uses less digits than its factorization.

13521203324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14761372 (or 14761370 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 13521203324 its reverse (42330212531), we get a palindrome (55851415855).

The spelling of 13521203324 in words is "thirteen billion, five hundred twenty-one million, two hundred three thousand, three hundred twenty-four".