218131032019 has 2 divisors, whose sum is σ = 218131032020. Its totient is φ = 218131032018.

The previous prime is 218131032013. The next prime is 218131032131. The reversal of 218131032019 is 910230131812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 218131032019 - 2¹⁷ = 218130900947 is a prime.

It is a super-2 number, since 2×218131032019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (218131032013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109065516009 + 109065516010.

It is an arithmetic number, because the mean of its divisors is an integer number (109065516010).

Almost surely, 2^218131032019 is an apocalyptic number.

218131032019 is a deficient number, since it is larger than the sum of its proper divisors (1).

218131032019 is an equidigital number, since it uses as much as digits as its factorization.

218131032019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 218131032019 in words is "two hundred eighteen billion, one hundred thirty-one million, thirty-two thousand, nineteen".