1312221303323 has 8 divisors (see below), whose sum is σ = 1499692028640. Its totient is φ = 1124753212800.

The previous prime is 1312221303317. The next prime is 1312221303391. The reversal of 1312221303323 is 3233031222131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1312221303323 - 2⁴ = 1312221303307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312221303292 and 1312221303301.

It is not an unprimeable number, because it can be changed into a prime (1312221303313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558473 + ... + 1713573.

It is an arithmetic number, because the mean of its divisors is an integer number (187461503580).

Almost surely, 2^{1312221303323} is an apocalyptic number.

1312221303323 is a deficient number, since it is larger than the sum of its proper divisors (187470725317).

1312221303323 is a wasteful number, since it uses less digits than its factorization.

1312221303323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317397.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1312221303323 its reverse (3233031222131), we get a palindrome (4545252525454).

The spelling of 1312221303323 in words is "one trillion, three hundred twelve billion, two hundred twenty-one million, three hundred three thousand, three hundred twenty-three".