31302312112321 has 8 divisors (see below), whose sum is σ = 31306199206464. Its totient is φ = 31298425268880.

The previous prime is 31302312112283. The next prime is 31302312112327. The reversal of 31302312112321 is 12321121320313.

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 31302312112321 - 2²⁷ = 31302177894593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31302312112327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376563855 + ... + 376646971.

It is an arithmetic number, because the mean of its divisors is an integer number (3913274900808).

Almost surely, 2^{31302312112321} is an apocalyptic number.

It is an amenable number.

31302312112321 is a deficient number, since it is larger than the sum of its proper divisors (3887094143).

31302312112321 is a wasteful number, since it uses less digits than its factorization.

31302312112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125351.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31302312112321 its reverse (12321121320313), we get a palindrome (43623433432634).

The spelling of 31302312112321 in words is "thirty-one trillion, three hundred two billion, three hundred twelve million, one hundred twelve thousand, three hundred twenty-one".