1123313331213 has 12 divisors (see below), whose sum is σ = 1625678033148. Its totient is φ = 747438169920.

The previous prime is 1123313331121. The next prime is 1123313331229. The reversal of 1123313331213 is 3121333133211.

1123313331213 is a `hidden beast` number, since 1 + 1 + 2 + 3 + 313 + 331 + 2 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 693086220324 + 430227110889 = 832518^2 + 655917^2 .

It is not a de Polignac number, because 1123313331213 - 2¹² = 1123313327117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123313231213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119777070 + ... + 119786447.

It is an arithmetic number, because the mean of its divisors is an integer number (135473169429).

Almost surely, 2^{1123313331213} is an apocalyptic number.

It is an amenable number.

1123313331213 is a deficient number, since it is larger than the sum of its proper divisors (502364701935).

1123313331213 is a wasteful number, since it uses less digits than its factorization.

1123313331213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239564044 (or 239564041 counting only the distinct ones).

The product of its digits is 2916, while the sum is 27.

Adding to 1123313331213 its reverse (3121333133211), we get a palindrome (4244646464424).

The spelling of 1123313331213 in words is "one trillion, one hundred twenty-three billion, three hundred thirteen million, three hundred thirty-one thousand, two hundred thirteen".