211111300201123 has 8 divisors (see below), whose sum is σ = 253968481445120. Its totient is φ = 171428724975240.

The previous prime is 211111300201097. The next prime is 211111300201133. The reversal of 211111300201123 is 321102003111112.

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 211111300201123 - 2⁹ = 211111300200611 is a prime.

It is a super-2 number, since 2×211111300201123² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 211111300201123.

It is not an unprimeable number, because it can be changed into a prime (211111300201133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793651504383 + ... + 793651504648.

It is an arithmetic number, because the mean of its divisors is an integer number (31746060180640).

Almost surely, 2^{211111300201123} is an apocalyptic number.

211111300201123 is a deficient number, since it is larger than the sum of its proper divisors (42857181243997).

211111300201123 is a wasteful number, since it uses less digits than its factorization.

211111300201123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587303009057.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 211111300201123 its reverse (321102003111112), we get a palindrome (532213303312235).

The spelling of 211111300201123 in words is "two hundred eleven trillion, one hundred eleven billion, three hundred million, two hundred one thousand, one hundred twenty-three".