211301031123 has 96 divisors (see below), whose sum is σ = 408493927296. Its totient is φ = 102063919104.

The previous prime is 211301031107. The next prime is 211301031181. The reversal of 211301031123 is 321130103112.

211301031123 is a `hidden beast` number, since 211 + 301 + 0 + 31 + 123 = 666.

211301031123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211301031123 - 2⁴ = 211301031107 is a prime.

It is a super-2 number, since 2×211301031123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211301031096 and 211301031105.

It is not an unprimeable number, because it can be changed into a prime (211301030123) 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 95 ways as a sum of consecutive naturals, for example, 310065 + ... + 720237.

It is an arithmetic number, because the mean of its divisors is an integer number (4255145076).

Almost surely, 2^211301031123 is an apocalyptic number.

211301031123 is a deficient number, since it is larger than the sum of its proper divisors (197192896173).

211301031123 is a wasteful number, since it uses less digits than its factorization.

211301031123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410253 (or 410250 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 211301031123 its reverse (321130103112), we get a palindrome (532431134235).

It can be divided in two parts, 21130103112 and 3, that multiplied together give a palindrome (63390309336).

The spelling of 211301031123 in words is "two hundred eleven billion, three hundred one million, thirty-one thousand, one hundred twenty-three".