212434811 has 2 divisors, whose sum is σ = 212434812. Its totient is φ = 212434810.

The previous prime is 212434741. The next prime is 212434829. The reversal of 212434811 is 118434212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212434811 is a prime.

It is not a weakly prime, because it can be changed into another prime (212434841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106217405 + 106217406.

It is an arithmetic number, because the mean of its divisors is an integer number (106217406).

Almost surely, 2^212434811 is an apocalyptic number.

212434811 is a deficient number, since it is larger than the sum of its proper divisors (1).

212434811 is an equidigital number, since it uses as much as digits as its factorization.

212434811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 26.

The square root of 212434811 is about 14575.1436013509. The cubic root of 212434811 is about 596.6805685653.

The spelling of 212434811 in words is "two hundred twelve million, four hundred thirty-four thousand, eight hundred eleven".