213440200509 has 16 divisors (see below), whose sum is σ = 291712506624. Its totient is φ = 138735072000.

The previous prime is 213440200489. The next prime is 213440200549. The reversal of 213440200509 is 905002044312.

It is not a de Polignac number, because 213440200509 - 2⁷ = 213440200381 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213440200549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353392 + ... + 742809.

It is an arithmetic number, because the mean of its divisors is an integer number (18232031664).

Almost surely, 2^213440200509 is an apocalyptic number.

It is an amenable number.

213440200509 is a deficient number, since it is larger than the sum of its proper divisors (78272306115).

213440200509 is a wasteful number, since it uses less digits than its factorization.

213440200509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097828.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 213440200509 in words is "two hundred thirteen billion, four hundred forty million, two hundred thousand, five hundred nine".