13309453723 has 8 divisors (see below), whose sum is σ = 13957920000. Its totient is φ = 12666803688.

The previous prime is 13309453649. The next prime is 13309453741. The reversal of 13309453723 is 32735490331.

13309453723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13309453723 - 2⁹ = 13309453211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13309453793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1449373 + ... + 1458526.

It is an arithmetic number, because the mean of its divisors is an integer number (1744740000).

Almost surely, 2^13309453723 is an apocalyptic number.

13309453723 is a deficient number, since it is larger than the sum of its proper divisors (648466277).

13309453723 is a wasteful number, since it uses less digits than its factorization.

13309453723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908121.

The product of its (nonzero) digits is 204120, while the sum is 40.

The spelling of 13309453723 in words is "thirteen billion, three hundred nine million, four hundred fifty-three thousand, seven hundred twenty-three".