1301323123 has 4 divisors (see below), whose sum is σ = 1377871560. Its totient is φ = 1224774688.

The previous prime is 1301323117. The next prime is 1301323139. The reversal of 1301323123 is 3213231031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1301323123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1301323123.

It is not an unprimeable number, because it can be changed into a prime (1301323223) 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, 38274193 + ... + 38274226.

It is an arithmetic number, because the mean of its divisors is an integer number (344467890).

Almost surely, 2^1301323123 is an apocalyptic number.

1301323123 is a deficient number, since it is larger than the sum of its proper divisors (76548437).

1301323123 is an equidigital number, since it uses as much as digits as its factorization.

1301323123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76548436.

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

The square root of 1301323123 is about 36073.8565030134. The cubic root of 1301323123 is about 1091.7630259821.

Adding to 1301323123 its reverse (3213231031), we get a palindrome (4514554154).

The spelling of 1301323123 in words is "one billion, three hundred one million, three hundred twenty-three thousand, one hundred twenty-three".