211345789001 has 4 divisors (see below), whose sum is σ = 222469251600. Its totient is φ = 200222326404.

The previous prime is 211345788977. The next prime is 211345789009. The reversal of 211345789001 is 100987543112.

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 211345789001 - 2¹⁰ = 211345787977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211345789001.

It is not an unprimeable number, because it can be changed into a prime (211345789009) 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, 5561731271 + ... + 5561731308.

It is an arithmetic number, because the mean of its divisors is an integer number (55617312900).

Almost surely, 2^211345789001 is an apocalyptic number.

It is an amenable number.

211345789001 is a deficient number, since it is larger than the sum of its proper divisors (11123462599).

211345789001 is a wasteful number, since it uses less digits than its factorization.

211345789001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11123462598.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 211345789001 in words is "two hundred eleven billion, three hundred forty-five million, seven hundred eighty-nine thousand, one".