211132023 has 4 divisors (see below), whose sum is σ = 281509368. Its totient is φ = 140754680.

The previous prime is 211132013. The next prime is 211132057. The reversal of 211132023 is 320231112.

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 211132023 - 2¹² = 211127927 is a prime.

It is a super-2 number, since 2×211132023² = 89153462272145058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211131993 and 211132011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211132013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35188668 + ... + 35188673.

It is an arithmetic number, because the mean of its divisors is an integer number (70377342).

Almost surely, 2^211132023 is an apocalyptic number.

211132023 is a deficient number, since it is larger than the sum of its proper divisors (70377345).

211132023 is an equidigital number, since it uses as much as digits as its factorization.

211132023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70377344.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 211132023 is about 14530.3827547660. The cubic root of 211132023 is about 595.4583225736.

Adding to 211132023 its reverse (320231112), we get a palindrome (531363135).

The spelling of 211132023 in words is "two hundred eleven million, one hundred thirty-two thousand, twenty-three".