121311302231023 has 2 divisors, whose sum is σ = 121311302231024. Its totient is φ = 121311302231022.

The previous prime is 121311302230991. The next prime is 121311302231029. The reversal of 121311302231023 is 320132203113121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121311302231023 - 2⁵ = 121311302230991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121311302231029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60655651115511 + 60655651115512.

It is an arithmetic number, because the mean of its divisors is an integer number (60655651115512).

Almost surely, 2^{121311302231023} is an apocalyptic number.

121311302231023 is a deficient number, since it is larger than the sum of its proper divisors (1).

121311302231023 is an equidigital number, since it uses as much as digits as its factorization.

121311302231023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 121311302231023 its reverse (320132203113121), we get a palindrome (441443505344144).

The spelling of 121311302231023 in words is "one hundred twenty-one trillion, three hundred eleven billion, three hundred two million, two hundred thirty-one thousand, twenty-three".