211434023 has 2 divisors, whose sum is σ = 211434024. Its totient is φ = 211434022.

The previous prime is 211434017. The next prime is 211434029. The reversal of 211434023 is 320434112.

211434023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (211434017) and next prime (211434029).

It is a cyclic number.

It is not a de Polignac number, because 211434023 - 2¹² = 211429927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211433986 and 211434004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211434029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105717011 + 105717012.

It is an arithmetic number, because the mean of its divisors is an integer number (105717012).

Almost surely, 2^211434023 is an apocalyptic number.

211434023 is a deficient number, since it is larger than the sum of its proper divisors (1).

211434023 is an equidigital number, since it uses as much as digits as its factorization.

211434023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 211434023 is about 14540.7710593352. The cubic root of 211434023 is about 595.7420987905.

Adding to 211434023 its reverse (320434112), we get a palindrome (531868135).

The spelling of 211434023 in words is "two hundred eleven million, four hundred thirty-four thousand, twenty-three".