1311232310321 has 8 divisors (see below), whose sum is σ = 1383619226400. Its totient is φ = 1239182863200.

The previous prime is 1311232310317. The next prime is 1311232310357. The reversal of 1311232310321 is 1230132321131.

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 1311232310321 - 2² = 1311232310317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311232310621) 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, 84359255 + ... + 84374796.

It is an arithmetic number, because the mean of its divisors is an integer number (172952403300).

Almost surely, 2^{1311232310321} is an apocalyptic number.

It is an amenable number.

1311232310321 is a deficient number, since it is larger than the sum of its proper divisors (72386916079).

1311232310321 is a wasteful number, since it uses less digits than its factorization.

1311232310321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168734479.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1311232310321 its reverse (1230132321131), we get a palindrome (2541364631452).

The spelling of 1311232310321 in words is "one trillion, three hundred eleven billion, two hundred thirty-two million, three hundred ten thousand, three hundred twenty-one".