211323003123 has 16 divisors (see below), whose sum is σ = 288588326400. Its totient is φ = 137487119136.

The previous prime is 211323003119. The next prime is 211323003127. The reversal of 211323003123 is 321300323112.

211323003123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (211323003119) and next prime (211323003127).

It is not a de Polignac number, because 211323003123 - 2² = 211323003119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211323003123.

It is not an unprimeable number, because it can be changed into a prime (211323003127) 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 15 ways as a sum of consecutive naturals, for example, 2110648 + ... + 2208501.

It is an arithmetic number, because the mean of its divisors is an integer number (18036770400).

Almost surely, 2^211323003123 is an apocalyptic number.

211323003123 is a deficient number, since it is larger than the sum of its proper divisors (77265323277).

211323003123 is a wasteful number, since it uses less digits than its factorization.

211323003123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4319546.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 211323003123 its reverse (321300323112), we get a palindrome (532623326235).

The spelling of 211323003123 in words is "two hundred eleven billion, three hundred twenty-three million, three thousand, one hundred twenty-three".