211231303211999 has 8 divisors (see below), whose sum is σ = 242658018199200. Its totient is φ = 180117291856896.

The previous prime is 211231303211933. The next prime is 211231303212047. The reversal of 211231303211999 is 999112303132112.

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

It is a cyclic number.

It is not a de Polignac number, because 211231303211999 - 2⁴⁴ = 193639117167583 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 (211231303211899) 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, 78175906574 + ... + 78175909275.

It is an arithmetic number, because the mean of its divisors is an integer number (30332252274900).

Almost surely, 2^{211231303211999} is an apocalyptic number.

211231303211999 is a deficient number, since it is larger than the sum of its proper divisors (31426714987201).

211231303211999 is a wasteful number, since it uses less digits than its factorization.

211231303211999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156351816049.

The product of its (nonzero) digits is 157464, while the sum is 47.

The spelling of 211231303211999 in words is "two hundred eleven trillion, two hundred thirty-one billion, three hundred three million, two hundred eleven thousand, nine hundred ninety-nine".