211123010323 has 4 divisors (see below), whose sum is σ = 212734636488. Its totient is φ = 209511384160.

The previous prime is 211123010317. The next prime is 211123010333. The reversal of 211123010323 is 323010321112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211123010323 - 2²⁹ = 210586139411 is a prime.

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 211123010323.

It is not an unprimeable number, because it can be changed into a prime (211123010303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805812886 + ... + 805813147.

It is an arithmetic number, because the mean of its divisors is an integer number (53183659122).

Almost surely, 2^211123010323 is an apocalyptic number.

211123010323 is a deficient number, since it is larger than the sum of its proper divisors (1611626165).

211123010323 is a wasteful number, since it uses less digits than its factorization.

211123010323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611626164.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 211123010323 its reverse (323010321112), we get a palindrome (534133331435).

The spelling of 211123010323 in words is "two hundred eleven billion, one hundred twenty-three million, ten thousand, three hundred twenty-three".