18213358103711 has 2 divisors, whose sum is σ = 18213358103712. Its totient is φ = 18213358103710.

The previous prime is 18213358103687. The next prime is 18213358103737. The reversal of 18213358103711 is 11730185331281.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18213358103711 - 2³⁴ = 18196178234527 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18213358103761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9106679051855 + 9106679051856.

It is an arithmetic number, because the mean of its divisors is an integer number (9106679051856).

Almost surely, 2^{18213358103711} is an apocalyptic number.

18213358103711 is a deficient number, since it is larger than the sum of its proper divisors (1).

18213358103711 is an equidigital number, since it uses as much as digits as its factorization.

18213358103711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 18213358103711 in words is "eighteen trillion, two hundred thirteen billion, three hundred fifty-eight million, one hundred three thousand, seven hundred eleven".