1331323230313 has 8 divisors (see below), whose sum is σ = 1386474093000. Its totient is φ = 1276788578688.

The previous prime is 1331323230257. The next prime is 1331323230317. The reversal of 1331323230313 is 3130323231331.

It can be written as a sum of positive squares in 4 ways, for example, as 174855276649 + 1156467953664 = 418157^2 + 1075392^2 .

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 1331323230313 - 2¹⁷ = 1331323099241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331323230317) 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, 154048356 + ... + 154056997.

It is an arithmetic number, because the mean of its divisors is an integer number (173309261625).

Almost surely, 2^{1331323230313} is an apocalyptic number.

It is an amenable number.

1331323230313 is a deficient number, since it is larger than the sum of its proper divisors (55150862687).

1331323230313 is a wasteful number, since it uses less digits than its factorization.

1331323230313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308105531.

The product of its (nonzero) digits is 8748, while the sum is 28.

Adding to 1331323230313 its reverse (3130323231331), we get a palindrome (4461646461644).

The spelling of 1331323230313 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-three million, two hundred thirty thousand, three hundred thirteen".