1321030131313 has 4 divisors (see below), whose sum is σ = 1321493490928. Its totient is φ = 1320566771700.

The previous prime is 1321030131299. The next prime is 1321030131329. The reversal of 1321030131313 is 3131310301231.

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 a cyclic number.

It is not a de Polignac number, because 1321030131313 - 2¹³ = 1321030123121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321030131373) 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 3 ways as a sum of consecutive naturals, for example, 231675531 + ... + 231681232.

It is an arithmetic number, because the mean of its divisors is an integer number (330373372732).

Almost surely, 2^{1321030131313} is an apocalyptic number.

It is an amenable number.

1321030131313 is a deficient number, since it is larger than the sum of its proper divisors (463359615).

1321030131313 is an equidigital number, since it uses as much as digits as its factorization.

1321030131313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463359614.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1321030131313 its reverse (3131310301231), we get a palindrome (4452340432544).

The spelling of 1321030131313 in words is "one trillion, three hundred twenty-one billion, thirty million, one hundred thirty-one thousand, three hundred thirteen".