13530315423 has 4 divisors (see below), whose sum is σ = 18040420568. Its totient is φ = 9020210280.

The previous prime is 13530315401. The next prime is 13530315431. The reversal of 13530315423 is 32451303531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32451303531 = 3 ⋅10817101177.

It is not a de Polignac number, because 13530315423 - 2¹⁴ = 13530299039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13530315493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2255052568 + ... + 2255052573.

It is an arithmetic number, because the mean of its divisors is an integer number (4510105142).

Almost surely, 2^13530315423 is an apocalyptic number.

13530315423 is a deficient number, since it is larger than the sum of its proper divisors (4510105145).

13530315423 is an equidigital number, since it uses as much as digits as its factorization.

13530315423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510105144.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 13530315423 its reverse (32451303531), we get a palindrome (45981618954).

The spelling of 13530315423 in words is "thirteen billion, five hundred thirty million, three hundred fifteen thousand, four hundred twenty-three".