31123232303209 has 8 divisors (see below), whose sum is σ = 34386793747200. Its totient is φ = 28018868978496.

The previous prime is 31123232303173. The next prime is 31123232303329. The reversal of 31123232303209 is 90230323232113.

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 31123232303209 - 2⁹ = 31123232302697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31123232303909) 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, 39799529409 + ... + 39799530190.

It is an arithmetic number, because the mean of its divisors is an integer number (4298349218400).

Almost surely, 2^{31123232303209} is an apocalyptic number.

It is an amenable number.

31123232303209 is a deficient number, since it is larger than the sum of its proper divisors (3263561443991).

31123232303209 is a wasteful number, since it uses less digits than its factorization.

31123232303209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79599059639.

The product of its (nonzero) digits is 34992, while the sum is 34.

The spelling of 31123232303209 in words is "thirty-one trillion, one hundred twenty-three billion, two hundred thirty-two million, three hundred three thousand, two hundred nine".