211042023 has 4 divisors (see below), whose sum is σ = 281389368. Its totient is φ = 140694680.

The previous prime is 211042009. The next prime is 211042037. The reversal of 211042023 is 320240112.

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

It is an interprime number because it is at equal distance from previous prime (211042009) and next prime (211042037).

It is a cyclic number.

It is not a de Polignac number, because 211042023 - 2¹⁶ = 210976487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211041993 and 211042011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211042003) 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, 35173668 + ... + 35173673.

It is an arithmetic number, because the mean of its divisors is an integer number (70347342).

Almost surely, 2^211042023 is an apocalyptic number.

211042023 is a deficient number, since it is larger than the sum of its proper divisors (70347345).

211042023 is an equidigital number, since it uses as much as digits as its factorization.

211042023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70347344.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 211042023 is about 14527.2854656333. The cubic root of 211042023 is about 595.3737011680.

Adding to 211042023 its reverse (320240112), we get a palindrome (531282135).

The spelling of 211042023 in words is "two hundred eleven million, forty-two thousand, twenty-three".