211123253 has 8 divisors (see below), whose sum is σ = 230726496. Its totient is φ = 191588400.

The previous prime is 211123207. The next prime is 211123261. The reversal of 211123253 is 352321112.

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 211123253 - 2⁶ = 211123189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211123273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10526 + ... + 23087.

It is an arithmetic number, because the mean of its divisors is an integer number (28840812).

Almost surely, 2^211123253 is an apocalyptic number.

It is an amenable number.

211123253 is a deficient number, since it is larger than the sum of its proper divisors (19603243).

211123253 is a wasteful number, since it uses less digits than its factorization.

211123253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34195.

The product of its digits is 360, while the sum is 20.

The square root of 211123253 is about 14530.0809701804. The cubic root of 211123253 is about 595.4500777454.

Adding to 211123253 its reverse (352321112), we get a palindrome (563444365).

The spelling of 211123253 in words is "two hundred eleven million, one hundred twenty-three thousand, two hundred fifty-three".