213061987583 has 4 divisors (see below), whose sum is σ = 214071760248. Its totient is φ = 212052214920.

The previous prime is 213061987573. The next prime is 213061987591. The reversal of 213061987583 is 385789160312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213061987583 - 2¹² = 213061983487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213061987573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504886016 + ... + 504886437.

It is an arithmetic number, because the mean of its divisors is an integer number (53517940062).

Almost surely, 2^213061987583 is an apocalyptic number.

213061987583 is a deficient number, since it is larger than the sum of its proper divisors (1009772665).

213061987583 is a wasteful number, since it uses less digits than its factorization.

213061987583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009772664.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 213061987583 in words is "two hundred thirteen billion, sixty-one million, nine hundred eighty-seven thousand, five hundred eighty-three".