213102120120247 has 2 divisors, whose sum is σ = 213102120120248. Its totient is φ = 213102120120246.

The previous prime is 213102120120229. The next prime is 213102120120271. The reversal of 213102120120247 is 742021021201312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213102120120247 - 2⁷ = 213102120120119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213102120120277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106551060060123 + 106551060060124.

It is an arithmetic number, because the mean of its divisors is an integer number (106551060060124).

Almost surely, 2^{213102120120247} is an apocalyptic number.

213102120120247 is a deficient number, since it is larger than the sum of its proper divisors (1).

213102120120247 is an equidigital number, since it uses as much as digits as its factorization.

213102120120247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

Adding to 213102120120247 its reverse (742021021201312), we get a palindrome (955123141321559).

The spelling of 213102120120247 in words is "two hundred thirteen trillion, one hundred two billion, one hundred twenty million, one hundred twenty thousand, two hundred forty-seven".