1303123103 has 4 divisors (see below), whose sum is σ = 1303195800. Its totient is φ = 1303050408.

The previous prime is 1303123097. The next prime is 1303123111. The reversal of 1303123103 is 3013213031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3013213031 = 1277 ⋅2359603.

It is a cyclic number.

It is not a de Polignac number, because 1303123103 - 2¹⁴ = 1303106719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303123153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11801 + ... + 52397.

It is an arithmetic number, because the mean of its divisors is an integer number (325798950).

Almost surely, 2^1303123103 is an apocalyptic number.

1303123103 is a deficient number, since it is larger than the sum of its proper divisors (72697).

1303123103 is an equidigital number, since it uses as much as digits as its factorization.

1303123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72696.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1303123103 is about 36098.7964203794. The cubic root of 1303123103 is about 1092.2661667756.

Adding to 1303123103 its reverse (3013213031), we get a palindrome (4316336134).

The spelling of 1303123103 in words is "one billion, three hundred three million, one hundred twenty-three thousand, one hundred three".