1311345250123 has 2 divisors, whose sum is σ = 1311345250124. Its totient is φ = 1311345250122.

The previous prime is 1311345250093. The next prime is 1311345250151. The reversal of 1311345250123 is 3210525431131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1311345250123 - 2⁵ = 1311345250091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311345250823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655672625061 + 655672625062.

It is an arithmetic number, because the mean of its divisors is an integer number (655672625062).

Almost surely, 2^{1311345250123} is an apocalyptic number.

1311345250123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311345250123 is an equidigital number, since it uses as much as digits as its factorization.

1311345250123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 1311345250123 in words is "one trillion, three hundred eleven billion, three hundred forty-five million, two hundred fifty thousand, one hundred twenty-three".