213318999999 has 24 divisors (see below), whose sum is σ = 360734573472. Its totient is φ = 118923482880.

The previous prime is 213318999997. The next prime is 213319000001. The reversal of 213318999999 is 999999813312.

213318999999 is a `hidden beast` number, since 213 + 318 + 9 + 9 + 9 + 9 + 99 = 666.

It is an interprime number because it is at equal distance from previous prime (213318999997) and next prime (213319000001).

It is not a de Polignac number, because 213318999999 - 2¹ = 213318999997 is a prime.

213318999999 is a modest number, since divided by 999999 gives 213318 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213318999997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41290294 + ... + 41295459.

It is an arithmetic number, because the mean of its divisors is an integer number (15030607228).

Almost surely, 2^213318999999 is an apocalyptic number.

213318999999 is a deficient number, since it is larger than the sum of its proper divisors (147415573473).

213318999999 is a wasteful number, since it uses less digits than its factorization.

213318999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82585807 (or 82585804 counting only the distinct ones).

The product of its digits is 76527504, while the sum is 72.

The spelling of 213318999999 in words is "two hundred thirteen billion, three hundred eighteen million, nine hundred ninety-nine thousand, nine hundred ninety-nine".