1323031122103 has 4 divisors (see below), whose sum is σ = 1327340670040. Its totient is φ = 1318721574168.

The previous prime is 1323031122097. The next prime is 1323031122167. The reversal of 1323031122103 is 3012211303231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1323031122103 - 2¹⁷ = 1323030991031 is a prime.

It is a super-2 number, since 2×1323031122103² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323031132103) 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 in 3 ways as a sum of consecutive naturals, for example, 2154773508 + ... + 2154774121.

It is an arithmetic number, because the mean of its divisors is an integer number (331835167510).

Almost surely, 2^{1323031122103} is an apocalyptic number.

1323031122103 is a deficient number, since it is larger than the sum of its proper divisors (4309547937).

1323031122103 is an equidigital number, since it uses as much as digits as its factorization.

1323031122103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309547936.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1323031122103 its reverse (3012211303231), we get a palindrome (4335242425334).

The spelling of 1323031122103 in words is "one trillion, three hundred twenty-three billion, thirty-one million, one hundred twenty-two thousand, one hundred three".