13311009 has 24 divisors (see below), whose sum is σ = 20060352. Its totient is φ = 8497440.

The previous prime is 13311007. The next prime is 13311031. The reversal of 13311009 is 90011331.

It is not a de Polignac number, because 13311009 - 2¹ = 13311007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13310982 and 13311000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23362 + ... + 23924.

It is an arithmetic number, because the mean of its divisors is an integer number (835848).

Almost surely, 2^13311009 is an apocalyptic number.

It is an amenable number.

13311009 is a deficient number, since it is larger than the sum of its proper divisors (6749343).

13311009 is a wasteful number, since it uses less digits than its factorization.

13311009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 13311009 is about 3648.4255508370. The cubic root of 13311009 is about 236.9938042497.

The spelling of 13311009 in words is "thirteen million, three hundred eleven thousand, nine".