18036311 has 2 divisors, whose sum is σ = 18036312. Its totient is φ = 18036310.

The previous prime is 18036287. The next prime is 18036323. The reversal of 18036311 is 11363081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18036311 - 2⁶ = 18036247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18036331) 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, 9018155 + 9018156.

It is an arithmetic number, because the mean of its divisors is an integer number (9018156).

Almost surely, 2^18036311 is an apocalyptic number.

18036311 is a deficient number, since it is larger than the sum of its proper divisors (1).

18036311 is an equidigital number, since it uses as much as digits as its factorization.

18036311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 18036311 is about 4246.9178235516. The cubic root of 18036311 is about 262.2502465008.

Adding to 18036311 its reverse (11363081), we get a palindrome (29399392).

The spelling of 18036311 in words is "eighteen million, thirty-six thousand, three hundred eleven".