211123101312223 has 4 divisors (see below), whose sum is σ = 211123695943528. Its totient is φ = 211122506680920.

The previous prime is 211123101312131. The next prime is 211123101312239. The reversal of 211123101312223 is 322213101321112.

211123101312223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 211123101312223 - 2⁴¹ = 208924078056671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211123101310223) 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, 296782761 + ... + 297493282.

It is an arithmetic number, because the mean of its divisors is an integer number (52780923985882).

Almost surely, 2^{211123101312223} is an apocalyptic number.

211123101312223 is a deficient number, since it is larger than the sum of its proper divisors (594631305).

211123101312223 is an equidigital number, since it uses as much as digits as its factorization.

211123101312223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594631304.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 211123101312223 its reverse (322213101321112), we get a palindrome (533336202633335).

The spelling of 211123101312223 in words is "two hundred eleven trillion, one hundred twenty-three billion, one hundred one million, three hundred twelve thousand, two hundred twenty-three".