1305314123 has 4 divisors (see below), whose sum is σ = 1305388920. Its totient is φ = 1305239328.

The previous prime is 1305314113. The next prime is 1305314141. The reversal of 1305314123 is 3214135031.

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: 3214135031 = 73 ⋅44029247.

It is a cyclic number.

It is not a de Polignac number, because 1305314123 - 2²² = 1301119819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1305314113) 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, 4211 + ... + 51267.

It is an arithmetic number, because the mean of its divisors is an integer number (326347230).

Almost surely, 2^1305314123 is an apocalyptic number.

1305314123 is a deficient number, since it is larger than the sum of its proper divisors (74797).

1305314123 is an equidigital number, since it uses as much as digits as its factorization.

1305314123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74796.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1305314123 is about 36129.1312239860. The cubic root of 1305314123 is about 1092.8779884825.

Adding to 1305314123 its reverse (3214135031), we get a palindrome (4519449154).

The spelling of 1305314123 in words is "one billion, three hundred five million, three hundred fourteen thousand, one hundred twenty-three".