80530111 has 2 divisors, whose sum is σ = 80530112. Its totient is φ = 80530110.

The previous prime is 80530097. The next prime is 80530123. The reversal of 80530111 is 11103508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80530111 - 2¹⁵ = 80497343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80530211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40265055 + 40265056.

It is an arithmetic number, because the mean of its divisors is an integer number (40265056).

Almost surely, 2^80530111 is an apocalyptic number.

80530111 is a deficient number, since it is larger than the sum of its proper divisors (1).

80530111 is an equidigital number, since it uses as much as digits as its factorization.

80530111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 80530111 is about 8973.8570860027. The cubic root of 80530111 is about 431.8365847824.

Adding to 80530111 its reverse (11103508), we get a palindrome (91633619).

The spelling of 80530111 in words is "eighty million, five hundred thirty thousand, one hundred eleven".