212013121703 has 2 divisors, whose sum is σ = 212013121704. Its totient is φ = 212013121702.

The previous prime is 212013121673. The next prime is 212013121753. The reversal of 212013121703 is 307121310212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212013121703 - 2⁸ = 212013121447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212013121753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006560851 + 106006560852.

It is an arithmetic number, because the mean of its divisors is an integer number (106006560852).

Almost surely, 2^212013121703 is an apocalyptic number.

212013121703 is a deficient number, since it is larger than the sum of its proper divisors (1).

212013121703 is an equidigital number, since it uses as much as digits as its factorization.

212013121703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 212013121703 its reverse (307121310212), we get a palindrome (519134431915).

The spelling of 212013121703 in words is "two hundred twelve billion, thirteen million, one hundred twenty-one thousand, seven hundred three".