12311220300073 has 2 divisors, whose sum is σ = 12311220300074. Its totient is φ = 12311220300072.

The previous prime is 12311220299863. The next prime is 12311220300133. The reversal of 12311220300073 is 37000302211321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10711723857129 + 1599496442944 = 3272877^2 + 1264712^2 .

It is an emirp because it is prime and its reverse (37000302211321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12311220300073 is a prime.

It is a super-2 number, since 2×12311220300073² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12311220360073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155610150036 + 6155610150037.

It is an arithmetic number, because the mean of its divisors is an integer number (6155610150037).

Almost surely, 2^{12311220300073} is an apocalyptic number.

It is an amenable number.

12311220300073 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311220300073 is an equidigital number, since it uses as much as digits as its factorization.

12311220300073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 12311220300073 its reverse (37000302211321), we get a palindrome (49311522511394).

The spelling of 12311220300073 in words is "twelve trillion, three hundred eleven billion, two hundred twenty million, three hundred thousand, seventy-three".