211232423 has 2 divisors, whose sum is σ = 211232424. Its totient is φ = 211232422.

The previous prime is 211232407. The next prime is 211232431. The reversal of 211232423 is 324232112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211232423 - 2⁴ = 211232407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211232395 and 211232404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211232453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105616211 + 105616212.

It is an arithmetic number, because the mean of its divisors is an integer number (105616212).

Almost surely, 2^211232423 is an apocalyptic number.

211232423 is a deficient number, since it is larger than the sum of its proper divisors (1).

211232423 is an equidigital number, since it uses as much as digits as its factorization.

211232423 is an odious number, because the sum of its binary digits is odd.

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

The square root of 211232423 is about 14533.8371739882. The cubic root of 211232423 is about 595.5526940808.

Adding to 211232423 its reverse (324232112), we get a palindrome (535464535).

The spelling of 211232423 in words is "two hundred eleven million, two hundred thirty-two thousand, four hundred twenty-three".