20467218313 has 2 divisors, whose sum is σ = 20467218314. Its totient is φ = 20467218312.

The previous prime is 20467218307. The next prime is 20467218367. The reversal of 20467218313 is 31381276402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16938501904 + 3528716409 = 130148^2 + 59403^2 .

It is a cyclic number.

It is not a de Polignac number, because 20467218313 - 2⁵ = 20467218281 is a prime.

It is not a weakly prime, because it can be changed into another prime (20467218713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10233609156 + 10233609157.

It is an arithmetic number, because the mean of its divisors is an integer number (10233609157).

Almost surely, 2^20467218313 is an apocalyptic number.

It is an amenable number.

20467218313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20467218313 is an equidigital number, since it uses as much as digits as its factorization.

20467218313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 20467218313 in words is "twenty billion, four hundred sixty-seven million, two hundred eighteen thousand, three hundred thirteen".