1312112033321 has 16 divisors (see below), whose sum is σ = 1327518666000. Its totient is φ = 1296806784000.

The previous prime is 1312112033213. The next prime is 1312112033327. The reversal of 1312112033321 is 1233302112131.

It can be written as a sum of positive squares in 8 ways, for example, as 323948797225 + 988163236096 = 569165^2 + 994064^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312112033321 - 2¹⁴ = 1312112016937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312112033327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29663021 + ... + 29707221.

It is an arithmetic number, because the mean of its divisors is an integer number (82969916625).

Almost surely, 2^{1312112033321} is an apocalyptic number.

It is an amenable number.

1312112033321 is a deficient number, since it is larger than the sum of its proper divisors (15406632679).

1312112033321 is a wasteful number, since it uses less digits than its factorization.

1312112033321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45340.

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

Adding to 1312112033321 its reverse (1233302112131), we get a palindrome (2545414145452).

The spelling of 1312112033321 in words is "one trillion, three hundred twelve billion, one hundred twelve million, thirty-three thousand, three hundred twenty-one".