212121102303703 has 2 divisors, whose sum is σ = 212121102303704. Its totient is φ = 212121102303702.

The previous prime is 212121102303679. The next prime is 212121102303739. The reversal of 212121102303703 is 307303201121212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212121102303703 - 2⁹ = 212121102303191 is a prime.

It is a super-3 number, since 3×212121102303703³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212121102303743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060551151851 + 106060551151852.

It is an arithmetic number, because the mean of its divisors is an integer number (106060551151852).

Almost surely, 2^{212121102303703} is an apocalyptic number.

212121102303703 is a deficient number, since it is larger than the sum of its proper divisors (1).

212121102303703 is an equidigital number, since it uses as much as digits as its factorization.

212121102303703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 212121102303703 its reverse (307303201121212), we get a palindrome (519424303424915).

The spelling of 212121102303703 in words is "two hundred twelve trillion, one hundred twenty-one billion, one hundred two million, three hundred three thousand, seven hundred three".