13231232309 has 8 divisors (see below), whose sum is σ = 13297625760. Its totient is φ = 13164910416.

The previous prime is 13231232297. The next prime is 13231232341. The reversal of 13231232309 is 90323213231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13231232309 is a prime.

It is a super-3 number, since 3×13231232309³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231232009) 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, 374207 + ... + 408035.

It is an arithmetic number, because the mean of its divisors is an integer number (1662203220).

Almost surely, 2^13231232309 is an apocalyptic number.

It is an amenable number.

13231232309 is a deficient number, since it is larger than the sum of its proper divisors (66393451).

13231232309 is a wasteful number, since it uses less digits than its factorization.

13231232309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35779.

The product of its (nonzero) digits is 5832, while the sum is 29.

The spelling of 13231232309 in words is "thirteen billion, two hundred thirty-one million, two hundred thirty-two thousand, three hundred nine".