1312302220331 has 16 divisors (see below), whose sum is σ = 1333754400000. Its totient is φ = 1291058028000.

The previous prime is 1312302220319. The next prime is 1312302220351. The reversal of 1312302220331 is 1330222032131.

It is a cyclic number.

It is not a de Polignac number, because 1312302220331 - 2³⁴ = 1295122351147 is a prime.

It is a super-2 number, since 2×1312302220331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312302220297 and 1312302220306.

It is not an unprimeable number, because it can be changed into a prime (1312302220351) 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 15 ways as a sum of consecutive naturals, for example, 9804245 + ... + 9937193.

It is an arithmetic number, because the mean of its divisors is an integer number (83359650000).

Almost surely, 2^{1312302220331} is an apocalyptic number.

1312302220331 is a deficient number, since it is larger than the sum of its proper divisors (21452179669).

1312302220331 is a wasteful number, since it uses less digits than its factorization.

1312302220331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133730.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1312302220331 its reverse (1330222032131), we get a palindrome (2642524252462).

The spelling of 1312302220331 in words is "one trillion, three hundred twelve billion, three hundred two million, two hundred twenty thousand, three hundred thirty-one".