13443515423 has 8 divisors (see below), whose sum is σ = 14480270448. Its totient is φ = 12407137344.

The previous prime is 13443515411. The next prime is 13443515429. The reversal of 13443515423 is 32451534431.

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

It is a cyclic number.

It is not a de Polignac number, because 13443515423 - 2⁶ = 13443515359 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 (13443515429) 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, 17861 + ... + 164942.

It is an arithmetic number, because the mean of its divisors is an integer number (1810033806).

Almost surely, 2^13443515423 is an apocalyptic number.

13443515423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13443515423 is a deficient number, since it is larger than the sum of its proper divisors (1036755025).

13443515423 is a wasteful number, since it uses less digits than its factorization.

13443515423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188473.

The product of its digits is 86400, while the sum is 35.

The spelling of 13443515423 in words is "thirteen billion, four hundred forty-three million, five hundred fifteen thousand, four hundred twenty-three".