213019557570871 has 2 divisors, whose sum is σ = 213019557570872. Its totient is φ = 213019557570870.

The previous prime is 213019557570851. The next prime is 213019557570931. The reversal of 213019557570871 is 178075755910312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213019557570871 - 2²¹ = 213019555473719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213019557570851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106509778785435 + 106509778785436.

It is an arithmetic number, because the mean of its divisors is an integer number (106509778785436).

Almost surely, 2^{213019557570871} is an apocalyptic number.

213019557570871 is a deficient number, since it is larger than the sum of its proper divisors (1).

213019557570871 is an equidigital number, since it uses as much as digits as its factorization.

213019557570871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18522000, while the sum is 61.

The spelling of 213019557570871 in words is "two hundred thirteen trillion, nineteen billion, five hundred fifty-seven million, five hundred seventy thousand, eight hundred seventy-one".