211312122111320 has 16 divisors (see below), whose sum is σ = 475452274750560. Its totient is φ = 84524848844512.

The previous prime is 211312122111319. The next prime is 211312122111331. The reversal of 211312122111320 is 23111221213112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2641401526352 + ... + 2641401526431.

It is an arithmetic number, because the mean of its divisors is an integer number (29715767171910).

Almost surely, 2^{211312122111320} is an apocalyptic number.

211312122111320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211312122111320 is an abundant number, since it is smaller than the sum of its proper divisors (264140152639240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211312122111320 is a wasteful number, since it uses less digits than its factorization.

211312122111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5282803052794 (or 5282803052790 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 211312122111320 its reverse (23111221213112), we get a palindrome (234423343324432).

The spelling of 211312122111320 in words is "two hundred eleven trillion, three hundred twelve billion, one hundred twenty-two million, one hundred eleven thousand, three hundred twenty".