231361226209 has 8 divisors (see below), whose sum is σ = 231505112960. Its totient is φ = 231217383600.

The previous prime is 231361226203. The next prime is 231361226221. The reversal of 231361226209 is 902622163132.

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 231361226209 - 2⁷ = 231361226081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231361226203) 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, 23433544 + ... + 23443414.

It is an arithmetic number, because the mean of its divisors is an integer number (28938139120).

Almost surely, 2^231361226209 is an apocalyptic number.

It is an amenable number.

231361226209 is a deficient number, since it is larger than the sum of its proper divisors (143886751).

231361226209 is an equidigital number, since it uses as much as digits as its factorization.

231361226209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22071.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 231361226209 in words is "two hundred thirty-one billion, three hundred sixty-one million, two hundred twenty-six thousand, two hundred nine".