1123872348673 has 2 divisors, whose sum is σ = 1123872348674. Its totient is φ = 1123872348672.

The previous prime is 1123872348637. The next prime is 1123872348679. The reversal of 1123872348673 is 3768432783211.

Together with previous prime (1123872348637) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 802221166224 + 321651182449 = 895668^2 + 567143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123872348673 is a prime.

It is a super-2 number, since 2×1123872348673² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123872348679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561936174336 + 561936174337.

It is an arithmetic number, because the mean of its divisors is an integer number (561936174337).

Almost surely, 2^{1123872348673} is an apocalyptic number.

It is an amenable number.

1123872348673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123872348673 is an equidigital number, since it uses as much as digits as its factorization.

1123872348673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 55.

The spelling of 1123872348673 in words is "one trillion, one hundred twenty-three billion, eight hundred seventy-two million, three hundred forty-eight thousand, six hundred seventy-three".