30771438100973 has 2 divisors, whose sum is σ = 30771438100974. Its totient is φ = 30771438100972.

The previous prime is 30771438100967. The next prime is 30771438100993. The reversal of 30771438100973 is 37900183417703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28495920156649 + 2275517944324 = 5338157^2 + 1508482^2 .

It is an emirp because it is prime and its reverse (37900183417703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30771438100973 - 2¹⁴ = 30771438084589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30771438100933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15385719050486 + 15385719050487.

It is an arithmetic number, because the mean of its divisors is an integer number (15385719050487).

Almost surely, 2^{30771438100973} is an apocalyptic number.

It is an amenable number.

30771438100973 is a deficient number, since it is larger than the sum of its proper divisors (1).

30771438100973 is an equidigital number, since it uses as much as digits as its factorization.

30771438100973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2667168, while the sum is 53.

The spelling of 30771438100973 in words is "thirty trillion, seven hundred seventy-one billion, four hundred thirty-eight million, one hundred thousand, nine hundred seventy-three".