1323123103 has 2 divisors, whose sum is σ = 1323123104. Its totient is φ = 1323123102.

The previous prime is 1323123101. The next prime is 1323123133. The reversal of 1323123103 is 3013213231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1323123103 - 2¹ = 1323123101 is a prime.

Together with 1323123101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323123101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661561551 + 661561552.

It is an arithmetic number, because the mean of its divisors is an integer number (661561552).

Almost surely, 2^1323123103 is an apocalyptic number.

1323123103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323123103 is an equidigital number, since it uses as much as digits as its factorization.

1323123103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1323123103 is about 36374.7591469689. The cubic root of 1323123103 is about 1097.8257611958.

Adding to 1323123103 its reverse (3013213231), we get a palindrome (4336336334).

The spelling of 1323123103 in words is "one billion, three hundred twenty-three million, one hundred twenty-three thousand, one hundred three".