80811103 has 2 divisors, whose sum is σ = 80811104. Its totient is φ = 80811102.

The previous prime is 80811091. The next prime is 80811109. The reversal of 80811103 is 30111808.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80811103 - 2¹⁷ = 80680031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80811109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40405551 + 40405552.

It is an arithmetic number, because the mean of its divisors is an integer number (40405552).

Almost surely, 2^80811103 is an apocalyptic number.

80811103 is a deficient number, since it is larger than the sum of its proper divisors (1).

80811103 is an equidigital number, since it uses as much as digits as its factorization.

80811103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 80811103 is about 8989.4995967518. The cubic root of 80811103 is about 432.3382677940.

It can be divided in two parts, 808 and 11103, that added together give a palindrome (11911).

The spelling of 80811103 in words is "eighty million, eight hundred eleven thousand, one hundred three".