212041603 has 2 divisors, whose sum is σ = 212041604. Its totient is φ = 212041602.

The previous prime is 212041601. The next prime is 212041607. The reversal of 212041603 is 306140212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212041603 - 2¹ = 212041601 is a prime.

Together with 212041601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (212041601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106020801 + 106020802.

It is an arithmetic number, because the mean of its divisors is an integer number (106020802).

Almost surely, 2^212041603 is an apocalyptic number.

212041603 is a deficient number, since it is larger than the sum of its proper divisors (1).

212041603 is an equidigital number, since it uses as much as digits as its factorization.

212041603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 212041603 is about 14561.6483613635. The cubic root of 212041603 is about 596.3121975531.

Adding to 212041603 its reverse (306140212), we get a palindrome (518181815).

The spelling of 212041603 in words is "two hundred twelve million, forty-one thousand, six hundred three".