1312023033321 has 64 divisors (see below), whose sum is σ = 2472417454080. Its totient is φ = 596029155840.

The previous prime is 1312023033317. The next prime is 1312023033323. The reversal of 1312023033321 is 1233303202131.

It is not a de Polignac number, because 1312023033321 - 2² = 1312023033317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312023033291 and 1312023033300.

It is not an unprimeable number, because it can be changed into a prime (1312023033323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11440420 + ... + 11554533.

It is an arithmetic number, because the mean of its divisors is an integer number (38631522720).

Almost surely, 2^{1312023033321} is an apocalyptic number.

1312023033321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1312023033321 is a deficient number, since it is larger than the sum of its proper divisors (1160394420759).

1312023033321 is a wasteful number, since it uses less digits than its factorization.

1312023033321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22995006.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1312023033321 its reverse (1233303202131), we get a palindrome (2545326235452).

The spelling of 1312023033321 in words is "one trillion, three hundred twelve billion, twenty-three million, thirty-three thousand, three hundred twenty-one".