213143411111087 has 2 divisors, whose sum is σ = 213143411111088. Its totient is φ = 213143411111086.

The previous prime is 213143411111063. The next prime is 213143411111179. The reversal of 213143411111087 is 780111114341312.

213143411111087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213143411111087 - 2⁶ = 213143411111023 is a prime.

It is a super-2 number, since 2×213143411111087² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213143411111087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213143411131087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106571705555543 + 106571705555544.

It is an arithmetic number, because the mean of its divisors is an integer number (106571705555544).

Almost surely, 2^{213143411111087} is an apocalyptic number.

213143411111087 is a deficient number, since it is larger than the sum of its proper divisors (1).

213143411111087 is an equidigital number, since it uses as much as digits as its factorization.

213143411111087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 38.

Adding to 213143411111087 its reverse (780111114341312), we get a palindrome (993254525452399).

The spelling of 213143411111087 in words is "two hundred thirteen trillion, one hundred forty-three billion, four hundred eleven million, one hundred eleven thousand, eighty-seven".