12310320121 has 8 divisors (see below), whose sum is σ = 13453048800. Its totient is φ = 11171526240.

The previous prime is 12310320103. The next prime is 12310320133. The reversal of 12310320121 is 12102301321.

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 12310320121 - 2⁵ = 12310320089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12310320095 and 12310320104.

It is not an unprimeable number, because it can be changed into a prime (12310320101) 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, 977151 + ... + 989668.

It is an arithmetic number, because the mean of its divisors is an integer number (1681631100).

Almost surely, 2^12310320121 is an apocalyptic number.

12310320121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12310320121 is a deficient number, since it is larger than the sum of its proper divisors (1142728679).

12310320121 is a wasteful number, since it uses less digits than its factorization.

12310320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967399.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12310320121 its reverse (12102301321), we get a palindrome (24412621442).

The spelling of 12310320121 in words is "twelve billion, three hundred ten million, three hundred twenty thousand, one hundred twenty-one".