18360370213 has 2 divisors, whose sum is σ = 18360370214. Its totient is φ = 18360370212.

The previous prime is 18360370207. The next prime is 18360370219. The reversal of 18360370213 is 31207306381.

It is a balanced prime because it is at equal distance from previous prime (18360370207) and next prime (18360370219).

It can be written as a sum of positive squares in only one way, i.e., 16708923169 + 1651447044 = 129263^2 + 40638^2 .

It is a cyclic number.

It is not a de Polignac number, because 18360370213 - 2²¹ = 18358273061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18360370219) 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, 9180185106 + 9180185107.

It is an arithmetic number, because the mean of its divisors is an integer number (9180185107).

Almost surely, 2^18360370213 is an apocalyptic number.

It is an amenable number.

18360370213 is a deficient number, since it is larger than the sum of its proper divisors (1).

18360370213 is an equidigital number, since it uses as much as digits as its factorization.

18360370213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

Adding to 18360370213 its reverse (31207306381), we get a palindrome (49567676594).

The spelling of 18360370213 in words is "eighteen billion, three hundred sixty million, three hundred seventy thousand, two hundred thirteen".