31320320323123 has 8 divisors (see below), whose sum is σ = 34447226280768. Its totient is φ = 28295935872384.

The previous prime is 31320320323099. The next prime is 31320320323129. The reversal of 31320320323123 is 32132302302313.

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 31320320323123 - 2¹³ = 31320320314931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31320320323091 and 31320320323100.

It is not an unprimeable number, because it can be changed into a prime (31320320323129) 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, 25630376086 + ... + 25630377307.

It is an arithmetic number, because the mean of its divisors is an integer number (4305903285096).

Almost surely, 2^{31320320323123} is an apocalyptic number.

31320320323123 is a deficient number, since it is larger than the sum of its proper divisors (3126905957645).

31320320323123 is a wasteful number, since it uses less digits than its factorization.

31320320323123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51260753453.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 31320320323123 its reverse (32132302302313), we get a palindrome (63452622625436).

The spelling of 31320320323123 in words is "thirty-one trillion, three hundred twenty billion, three hundred twenty million, three hundred twenty-three thousand, one hundred twenty-three".