213285170587 has 2 divisors, whose sum is σ = 213285170588. Its totient is φ = 213285170586.

The previous prime is 213285170573. The next prime is 213285170617. The reversal of 213285170587 is 785071582312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213285170587 - 2³¹ = 211137686939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213285170587.

It is not a weakly prime, because it can be changed into another prime (213285171587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106642585293 + 106642585294.

It is an arithmetic number, because the mean of its divisors is an integer number (106642585294).

Almost surely, 2^213285170587 is an apocalyptic number.

213285170587 is a deficient number, since it is larger than the sum of its proper divisors (1).

213285170587 is an equidigital number, since it uses as much as digits as its factorization.

213285170587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 940800, while the sum is 49.

It can be divided in two parts, 21328 and 5170587, that added together give a palindrome (5191915).

The spelling of 213285170587 in words is "two hundred thirteen billion, two hundred eighty-five million, one hundred seventy thousand, five hundred eighty-seven".