1312211323333 has 16 divisors (see below), whose sum is σ = 1340957088000. Its totient is φ = 1283689838592.

The previous prime is 1312211323303. The next prime is 1312211323403. The reversal of 1312211323333 is 3333231122131.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312211323333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312211323303) 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, 20965141 + ... + 21027637.

It is an arithmetic number, because the mean of its divisors is an integer number (83809818000).

Almost surely, 2^{1312211323333} is an apocalyptic number.

It is an amenable number.

1312211323333 is a deficient number, since it is larger than the sum of its proper divisors (28745764667).

1312211323333 is a wasteful number, since it uses less digits than its factorization.

1312211323333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64284.

The product of its digits is 5832, while the sum is 28.

Adding to 1312211323333 its reverse (3333231122131), we get a palindrome (4645442445464).

The spelling of 1312211323333 in words is "one trillion, three hundred twelve billion, two hundred eleven million, three hundred twenty-three thousand, three hundred thirty-three".