213111302030209 has 4 divisors (see below), whose sum is σ = 232485056760240. Its totient is φ = 193737547300180.

The previous prime is 213111302030197. The next prime is 213111302030213. The reversal of 213111302030209 is 902030203111312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213111302030209 - 2⁹ = 213111302029697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213111302030509) 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, 9686877364999 + ... + 9686877365020.

It is an arithmetic number, because the mean of its divisors is an integer number (58121264190060).

Almost surely, 2^{213111302030209} is an apocalyptic number.

It is an amenable number.

213111302030209 is a deficient number, since it is larger than the sum of its proper divisors (19373754730031).

213111302030209 is a wasteful number, since it uses less digits than its factorization.

213111302030209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19373754730030.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 213111302030209 in words is "two hundred thirteen trillion, one hundred eleven billion, three hundred two million, thirty thousand, two hundred nine".