80300081021 has 2 divisors, whose sum is σ = 80300081022. Its totient is φ = 80300081020.

The previous prime is 80300080997. The next prime is 80300081023. The reversal of 80300081021 is 12018000308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51624384100 + 28675696921 = 227210^2 + 169339^2 .

It is a cyclic number.

It is not a de Polignac number, because 80300081021 - 2³⁰ = 79226339197 is a prime.

Together with 80300081023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80300081023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40150040510 + 40150040511.

It is an arithmetic number, because the mean of its divisors is an integer number (40150040511).

Almost surely, 2^80300081021 is an apocalyptic number.

It is an amenable number.

80300081021 is a deficient number, since it is larger than the sum of its proper divisors (1).

80300081021 is an equidigital number, since it uses as much as digits as its factorization.

80300081021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 80300081021 its reverse (12018000308), we get a palindrome (92318081329).

The spelling of 80300081021 in words is "eighty billion, three hundred million, eighty-one thousand, twenty-one".