211303121999 has 8 divisors (see below), whose sum is σ = 216224671872. Its totient is φ = 206381914200.

The previous prime is 211303121983. The next prime is 211303122011. The reversal of 211303121999 is 999121303112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211303121999 - 2⁴ = 211303121983 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 (211303121969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1504472 + ... + 1638914.

It is an arithmetic number, because the mean of its divisors is an integer number (27028083984).

Almost surely, 2^211303121999 is an apocalyptic number.

211303121999 is a deficient number, since it is larger than the sum of its proper divisors (4921549873).

211303121999 is a wasteful number, since it uses less digits than its factorization.

211303121999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171037.

The product of its (nonzero) digits is 26244, while the sum is 41.

The spelling of 211303121999 in words is "two hundred eleven billion, three hundred three million, one hundred twenty-one thousand, nine hundred ninety-nine".