1213233122313 has 6 divisors (see below), whose sum is σ = 1752447843354. Its totient is φ = 808822081536.

The previous prime is 1213233122279. The next prime is 1213233122327. The reversal of 1213233122313 is 3132213323121.

1213233122313 is a `hidden beast` number, since 1 + 2 + 1 + 32 + 3 + 312 + 2 + 313 = 666.

It can be written as a sum of positive squares in only one way, i.e., 846302482809 + 366930639504 = 919947^2 + 605748^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1213233122313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213233122513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67401840120 + ... + 67401840137.

It is an arithmetic number, because the mean of its divisors is an integer number (292074640559).

Almost surely, 2^{1213233122313} is an apocalyptic number.

It is an amenable number.

1213233122313 is a deficient number, since it is larger than the sum of its proper divisors (539214721041).

1213233122313 is a wasteful number, since it uses less digits than its factorization.

1213233122313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134803680263 (or 134803680260 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 1213233122313 its reverse (3132213323121), we get a palindrome (4345446445434).

The spelling of 1213233122313 in words is "one trillion, two hundred thirteen billion, two hundred thirty-three million, one hundred twenty-two thousand, three hundred thirteen".