31112323120321 has 8 divisors (see below), whose sum is σ = 31865153391104. Its totient is φ = 30360824116560.

The previous prime is 31112323120243. The next prime is 31112323120331. The reversal of 31112323120321 is 12302132321113.

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 31112323120321 - 2⁹ = 31112323119809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31112323120331) 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, 332769450 + ... + 332862931.

It is an arithmetic number, because the mean of its divisors is an integer number (3983144173888).

Almost surely, 2^{31112323120321} is an apocalyptic number.

It is an amenable number.

31112323120321 is a deficient number, since it is larger than the sum of its proper divisors (752830270783).

31112323120321 is a wasteful number, since it uses less digits than its factorization.

31112323120321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665633511.

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

Adding to 31112323120321 its reverse (12302132321113), we get a palindrome (43414455441434).

The spelling of 31112323120321 in words is "thirty-one trillion, one hundred twelve billion, three hundred twenty-three million, one hundred twenty thousand, three hundred twenty-one".