213443106884297 has 2 divisors, whose sum is σ = 213443106884298. Its totient is φ = 213443106884296.

The previous prime is 213443106884237. The next prime is 213443106884473. The reversal of 213443106884297 is 792488601344312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196142797999801 + 17300308884496 = 14005099^2 + 4159364^2 .

It is a cyclic number.

It is not a de Polignac number, because 213443106884297 - 2³⁰ = 213442033142473 is a prime.

It is not a weakly prime, because it can be changed into another prime (213443106884237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106721553442148 + 106721553442149.

It is an arithmetic number, because the mean of its divisors is an integer number (106721553442149).

Almost surely, 2^{213443106884297} is an apocalyptic number.

It is an amenable number.

213443106884297 is a deficient number, since it is larger than the sum of its proper divisors (1).

213443106884297 is an equidigital number, since it uses as much as digits as its factorization.

213443106884297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55738368, while the sum is 62.

The spelling of 213443106884297 in words is "two hundred thirteen trillion, four hundred forty-three billion, one hundred six million, eight hundred eighty-four thousand, two hundred ninety-seven".