13530320452 has 24 divisors (see below), whose sum is σ = 26254069632. Its totient is φ = 6049322400.

The previous prime is 13530320429. The next prime is 13530320467. The reversal of 13530320452 is 25402303531.

It is a self number, because there is not a number n which added to its sum of digits gives 13530320452.

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, 2517868 + ... + 2523235.

It is an arithmetic number, because the mean of its divisors is an integer number (1093919568).

Almost surely, 2^13530320452 is an apocalyptic number.

It is an amenable number.

13530320452 is a deficient number, since it is larger than the sum of its proper divisors (12723749180).

13530320452 is a wasteful number, since it uses less digits than its factorization.

13530320452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5041179 (or 5041177 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 13530320452 its reverse (25402303531), we get a palindrome (38932623983).

The spelling of 13530320452 in words is "thirteen billion, five hundred thirty million, three hundred twenty thousand, four hundred fifty-two".