1123311213113 has 2 divisors, whose sum is σ = 1123311213114. Its totient is φ = 1123311213112.

The previous prime is 1123311213107. The next prime is 1123311213121. The reversal of 1123311213113 is 3113121133211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 587879493289 + 535431719824 = 766733^2 + 731732^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123311213113 - 2¹⁸ = 1123310950969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123311213173) 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 as a sum of consecutive naturals, namely, 561655606556 + 561655606557.

It is an arithmetic number, because the mean of its divisors is an integer number (561655606557).

Almost surely, 2^{1123311213113} is an apocalyptic number.

It is an amenable number.

1123311213113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123311213113 is an equidigital number, since it uses as much as digits as its factorization.

1123311213113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 23.

Adding to 1123311213113 its reverse (3113121133211), we get a palindrome (4236432346324).

The spelling of 1123311213113 in words is "one trillion, one hundred twenty-three billion, three hundred eleven million, two hundred thirteen thousand, one hundred thirteen".