1211302113023 has 2 divisors, whose sum is σ = 1211302113024. Its totient is φ = 1211302113022.

The previous prime is 1211302112987. The next prime is 1211302113037. The reversal of 1211302113023 is 3203112031121.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3203112031121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1211302113023 - 2⁶ = 1211302112959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1211302112986 and 1211302113004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211302113053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605651056511 + 605651056512.

It is an arithmetic number, because the mean of its divisors is an integer number (605651056512).

Almost surely, 2^{1211302113023} is an apocalyptic number.

1211302113023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211302113023 is an equidigital number, since it uses as much as digits as its factorization.

1211302113023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1211302113023 its reverse (3203112031121), we get a palindrome (4414414144144).

The spelling of 1211302113023 in words is "one trillion, two hundred eleven billion, three hundred two million, one hundred thirteen thousand, twenty-three".