12310131201321 has 4 divisors (see below), whose sum is σ = 16413508268432. Its totient is φ = 8206754134212.

The previous prime is 12310131201317. The next prime is 12310131201343. The reversal of 12310131201321 is 12310213101321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12310131201321 - 2² = 12310131201317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12310131101321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2051688533551 + ... + 2051688533556.

It is an arithmetic number, because the mean of its divisors is an integer number (4103377067108).

Almost surely, 2^{12310131201321} is an apocalyptic number.

It is an amenable number.

12310131201321 is a deficient number, since it is larger than the sum of its proper divisors (4103377067111).

12310131201321 is an equidigital number, since it uses as much as digits as its factorization.

12310131201321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103377067110.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12310131201321 its reverse (12310213101321), we get a palindrome (24620344302642).

The spelling of 12310131201321 in words is "twelve trillion, three hundred ten billion, one hundred thirty-one million, two hundred one thousand, three hundred twenty-one".