212111023 has 8 divisors (see below), whose sum is σ = 225311328. Its totient is φ = 198991104.

The previous prime is 212110981. The next prime is 212111027. The reversal of 212111023 is 320111212.

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 212111023 - 2⁹ = 212110511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212110994 and 212111012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212111027) 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, 14611 + ... + 25252.

It is an arithmetic number, because the mean of its divisors is an integer number (28163916).

Almost surely, 2^212111023 is an apocalyptic number.

212111023 is a deficient number, since it is larger than the sum of its proper divisors (13200305).

212111023 is a wasteful number, since it uses less digits than its factorization.

212111023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40193.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 212111023 is about 14564.0318250133. The cubic root of 212111023 is about 596.3772657212.

Adding to 212111023 its reverse (320111212), we get a palindrome (532222235).

The spelling of 212111023 in words is "two hundred twelve million, one hundred eleven thousand, twenty-three".