1312204022123 has 2 divisors, whose sum is σ = 1312204022124. Its totient is φ = 1312204022122.

The previous prime is 1312204022119. The next prime is 1312204022159. The reversal of 1312204022123 is 3212204022131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312204022123 - 2² = 1312204022119 is a prime.

It is not a weakly prime, because it can be changed into another prime (1312204022183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656102011061 + 656102011062.

It is an arithmetic number, because the mean of its divisors is an integer number (656102011062).

Almost surely, 2^{1312204022123} is an apocalyptic number.

1312204022123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312204022123 is an equidigital number, since it uses as much as digits as its factorization.

1312204022123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1312204022123 its reverse (3212204022131), we get a palindrome (4524408044254).

The spelling of 1312204022123 in words is "one trillion, three hundred twelve billion, two hundred four million, twenty-two thousand, one hundred twenty-three".