1323120112003 has 2 divisors, whose sum is σ = 1323120112004. Its totient is φ = 1323120112002.

The previous prime is 1323120111977. The next prime is 1323120112043. The reversal of 1323120112003 is 3002110213231.

It is a weak prime.

It is an emirp because it is prime and its reverse (3002110213231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323120112003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323120112043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661560056001 + 661560056002.

It is an arithmetic number, because the mean of its divisors is an integer number (661560056002).

Almost surely, 2^{1323120112003} is an apocalyptic number.

1323120112003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323120112003 is an equidigital number, since it uses as much as digits as its factorization.

1323120112003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1323120112003 its reverse (3002110213231), we get a palindrome (4325230325234).

The spelling of 1323120112003 in words is "one trillion, three hundred twenty-three billion, one hundred twenty million, one hundred twelve thousand, three".