1311210023 has 2 divisors, whose sum is σ = 1311210024. Its totient is φ = 1311210022.

The previous prime is 1311210011. The next prime is 1311210071. The reversal of 1311210023 is 3200121131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1311210023 - 2¹⁸ = 1310947879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311210623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655605011 + 655605012.

It is an arithmetic number, because the mean of its divisors is an integer number (655605012).

Almost surely, 2^1311210023 is an apocalyptic number.

1311210023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311210023 is an equidigital number, since it uses as much as digits as its factorization.

1311210023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1311210023 is about 36210.6341148564. The cubic root of 1311210023 is about 1094.5209703169.

Adding to 1311210023 its reverse (3200121131), we get a palindrome (4511331154).

The spelling of 1311210023 in words is "one billion, three hundred eleven million, two hundred ten thousand, twenty-three".