13530253443 has 8 divisors (see below), whose sum is σ = 20617529088. Its totient is φ = 7731573384.

The previous prime is 13530253441. The next prime is 13530253487. The reversal of 13530253443 is 34435203531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13530253443 - 2¹ = 13530253441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13530253441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322148871 + ... + 322148912.

It is an arithmetic number, because the mean of its divisors is an integer number (2577191136).

Almost surely, 2^13530253443 is an apocalyptic number.

13530253443 is a deficient number, since it is larger than the sum of its proper divisors (7087275645).

13530253443 is an equidigital number, since it uses as much as digits as its factorization.

13530253443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644297793.

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 13530253443 its reverse (34435203531), we get a palindrome (47965456974).

The spelling of 13530253443 in words is "thirteen billion, five hundred thirty million, two hundred fifty-three thousand, four hundred forty-three".