31321688612313 has 8 divisors (see below), whose sum is σ = 45558819799776. Its totient is φ = 18982841583200.

The previous prime is 31321688612293. The next prime is 31321688612329.

31321688612313 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 31321688612313 - 2¹³ = 31321688604121 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31321688612363) 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, 474571039548 + ... + 474571039613.

It is an arithmetic number, because the mean of its divisors is an integer number (5694852474972).

Almost surely, 2^{31321688612313} is an apocalyptic number.

31321688612313 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31321688612313 is a deficient number, since it is larger than the sum of its proper divisors (14237131187463).

31321688612313 is a wasteful number, since it uses less digits than its factorization.

31321688612313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949142079175.

The product of its digits is 746496, while the sum is 48.

The spelling of 31321688612313 in words is "thirty-one trillion, three hundred twenty-one billion, six hundred eighty-eight million, six hundred twelve thousand, three hundred thirteen".