18801103 has 2 divisors, whose sum is σ = 18801104. Its totient is φ = 18801102.

The previous prime is 18801091. The next prime is 18801109. The reversal of 18801103 is 30110881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18801103 - 2¹³ = 18792911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18801109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9400551 + 9400552.

It is an arithmetic number, because the mean of its divisors is an integer number (9400552).

Almost surely, 2^18801103 is an apocalyptic number.

18801103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18801103 is an equidigital number, since it uses as much as digits as its factorization.

18801103 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 18801103 is about 4336.0238698605. The cubic root of 18801103 is about 265.9057790931.

Adding to 18801103 its reverse (30110881), we get a palindrome (48911984).

The spelling of 18801103 in words is "eighteen million, eight hundred one thousand, one hundred three".