31320244309 has 8 divisors (see below), whose sum is σ = 32975268480. Its totient is φ = 29665879200.

The previous prime is 31320244301. The next prime is 31320244381. The reversal of 31320244309 is 90344202313.

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 31320244309 - 2³ = 31320244301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31320244301) 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, 65677 + ... + 258754.

It is an arithmetic number, because the mean of its divisors is an integer number (4121908560).

Almost surely, 2^31320244309 is an apocalyptic number.

It is an amenable number.

31320244309 is a deficient number, since it is larger than the sum of its proper divisors (1655024171).

31320244309 is a wasteful number, since it uses less digits than its factorization.

31320244309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329531.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 31320244309 in words is "thirty-one billion, three hundred twenty million, two hundred forty-four thousand, three hundred nine".