13123142709 has 8 divisors (see below), whose sum is σ = 17498078400. Its totient is φ = 8748484416.

The previous prime is 13123142701. The next prime is 13123142713. The reversal of 13123142709 is 90724132131.

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

It is not a de Polignac number, because 13123142709 - 2³ = 13123142701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13123142709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123142701) 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, 100392 + ... + 190590.

It is an arithmetic number, because the mean of its divisors is an integer number (2187259800).

Almost surely, 2^13123142709 is an apocalyptic number.

It is an amenable number.

13123142709 is a deficient number, since it is larger than the sum of its proper divisors (4374935691).

13123142709 is an equidigital number, since it uses as much as digits as its factorization.

13123142709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138699.

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 13123142709 in words is "thirteen billion, one hundred twenty-three million, one hundred forty-two thousand, seven hundred nine".