203213210330849 has 2 divisors, whose sum is σ = 203213210330850. Its totient is φ = 203213210330848.

The previous prime is 203213210330843. The next prime is 203213210330909. The reversal of 203213210330849 is 948033012312302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200426113639249 + 2787096691600 = 14157193^2 + 1669460^2 .

It is a cyclic number.

It is not a de Polignac number, because 203213210330849 - 2⁴ = 203213210330833 is a prime.

It is not a weakly prime, because it can be changed into another prime (203213210330843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101606605165424 + 101606605165425.

It is an arithmetic number, because the mean of its divisors is an integer number (101606605165425).

Almost surely, 2^{203213210330849} is an apocalyptic number.

It is an amenable number.

203213210330849 is a deficient number, since it is larger than the sum of its proper divisors (1).

203213210330849 is an equidigital number, since it uses as much as digits as its factorization.

203213210330849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 203213210330849 in words is "two hundred three trillion, two hundred thirteen billion, two hundred ten million, three hundred thirty thousand, eight hundred forty-nine".