12311332020997 has 2 divisors, whose sum is σ = 12311332020998. Its totient is φ = 12311332020996.

The previous prime is 12311332020973. The next prime is 12311332021013. The reversal of 12311332020997 is 79902023311321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12155779872196 + 155552148801 = 3486514^2 + 394401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12311332020997 is a prime.

It is a super-2 number, since 2×12311332020997² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12311332020907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155666010498 + 6155666010499.

It is an arithmetic number, because the mean of its divisors is an integer number (6155666010499).

Almost surely, 2^{12311332020997} is an apocalyptic number.

It is an amenable number.

12311332020997 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311332020997 is an equidigital number, since it uses as much as digits as its factorization.

12311332020997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 43.

The spelling of 12311332020997 in words is "twelve trillion, three hundred eleven billion, three hundred thirty-two million, twenty thousand, nine hundred ninety-seven".