1312320201331 has 8 divisors (see below), whose sum is σ = 1315410969600. Its totient is φ = 1309232949960.

The previous prime is 1312320201323. The next prime is 1312320201347. The reversal of 1312320201331 is 1331020232131.

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 1312320201331 - 2³ = 1312320201323 is a prime.

It is a super-2 number, since 2×1312320201331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310320201331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131305 + ... + 1625386.

It is an arithmetic number, because the mean of its divisors is an integer number (164426371200).

Almost surely, 2^{1312320201331} is an apocalyptic number.

1312320201331 is a deficient number, since it is larger than the sum of its proper divisors (3090768269).

1312320201331 is a wasteful number, since it uses less digits than its factorization.

1312320201331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758449.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1312320201331 its reverse (1331020232131), we get a palindrome (2643340433462).

The spelling of 1312320201331 in words is "one trillion, three hundred twelve billion, three hundred twenty million, two hundred one thousand, three hundred thirty-one".