1310123 has 2 divisors, whose sum is σ = 1310124. Its totient is φ = 1310122.

The previous prime is 1310119. The next prime is 1310137. The reversal of 1310123 is 3210131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1310123 - 2² = 1310119 is a prime.

It is not a weakly prime, because it can be changed into another prime (1310143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655061 + 655062.

It is an arithmetic number, because the mean of its divisors is an integer number (655062).

2^1310123 is an apocalyptic number.

1310123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310123 is an equidigital number, since it uses as much as digits as its factorization.

1310123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1310123 is about 1144.6060457642. The cubic root of 1310123 is about 109.4218425751.

Adding to 1310123 its reverse (3210131), we get a palindrome (4520254).

The spelling of 1310123 in words is "one million, three hundred ten thousand, one hundred twenty-three".