213113111303087 has 2 divisors, whose sum is σ = 213113111303088. Its totient is φ = 213113111303086.

The previous prime is 213113111303077. The next prime is 213113111303153. The reversal of 213113111303087 is 780303111311312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213113111303087 - 2²⁶ = 213113044194223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213113111303047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106556555651543 + 106556555651544.

It is an arithmetic number, because the mean of its divisors is an integer number (106556555651544).

Almost surely, 2^{213113111303087} is an apocalyptic number.

213113111303087 is a deficient number, since it is larger than the sum of its proper divisors (1).

213113111303087 is an equidigital number, since it uses as much as digits as its factorization.

213113111303087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

Adding to 213113111303087 its reverse (780303111311312), we get a palindrome (993416222614399).

The spelling of 213113111303087 in words is "two hundred thirteen trillion, one hundred thirteen billion, one hundred eleven million, three hundred three thousand, eighty-seven".