13000023309 has 16 divisors (see below), whose sum is σ = 21333372032. Its totient is φ = 6857155008.

The previous prime is 13000023293. The next prime is 13000023329. The reversal of 13000023309 is 90332000031.

13000023309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13000023309 - 2⁴ = 13000023293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000023329) 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 15 ways as a sum of consecutive naturals, for example, 23809294 + ... + 23809839.

It is an arithmetic number, because the mean of its divisors is an integer number (1333335752).

Almost surely, 2^13000023309 is an apocalyptic number.

It is an amenable number.

13000023309 is a deficient number, since it is larger than the sum of its proper divisors (8333348723).

13000023309 is a wasteful number, since it uses less digits than its factorization.

13000023309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47619156.

The product of its (nonzero) digits is 486, while the sum is 21.

The spelling of 13000023309 in words is "thirteen billion, twenty-three thousand, three hundred nine".