1312200102331 has 4 divisors (see below), whose sum is σ = 1312202659392. Its totient is φ = 1312197545272.

The previous prime is 1312200102319. The next prime is 1312200102371. The reversal of 1312200102331 is 1332010022131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312200102331 - 2⁷ = 1312200102203 is a prime.

It is a super-2 number, since 2×1312200102331² (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 = 1312200102299 and 1312200102308.

It is not an unprimeable number, because it can be changed into a prime (1312200102371) 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, 212491 + ... + 1633876.

It is an arithmetic number, because the mean of its divisors is an integer number (328050664848).

Almost surely, 2^{1312200102331} is an apocalyptic number.

1312200102331 is a deficient number, since it is larger than the sum of its proper divisors (2557061).

1312200102331 is an equidigital number, since it uses as much as digits as its factorization.

1312200102331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557060.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1312200102331 its reverse (1332010022131), we get a palindrome (2644210124462).

The spelling of 1312200102331 in words is "one trillion, three hundred twelve billion, two hundred million, one hundred two thousand, three hundred thirty-one".