213013113133187 has 2 divisors, whose sum is σ = 213013113133188. Its totient is φ = 213013113133186.

The previous prime is 213013113133127. The next prime is 213013113133199. The reversal of 213013113133187 is 781331311310312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213013113133187 - 2⁶ = 213013113133123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213013113133187.

It is not a weakly prime, because it can be changed into another prime (213013113133127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106506556566593 + 106506556566594.

It is an arithmetic number, because the mean of its divisors is an integer number (106506556566594).

Almost surely, 2^{213013113133187} is an apocalyptic number.

213013113133187 is a deficient number, since it is larger than the sum of its proper divisors (1).

213013113133187 is an equidigital number, since it uses as much as digits as its factorization.

213013113133187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

Adding to 213013113133187 its reverse (781331311310312), we get a palindrome (994344424443499).

The spelling of 213013113133187 in words is "two hundred thirteen trillion, thirteen billion, one hundred thirteen million, one hundred thirty-three thousand, one hundred eighty-seven".