213210044017 has 2 divisors, whose sum is σ = 213210044018. Its totient is φ = 213210044016.

The previous prime is 213210044009. The next prime is 213210044059. The reversal of 213210044017 is 710440012312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208286355456 + 4923688561 = 456384^2 + 70169^2 .

It is a cyclic number.

It is not a de Polignac number, because 213210044017 - 2³ = 213210044009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213210043982 and 213210044000.

It is not a weakly prime, because it can be changed into another prime (213210044077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106605022008 + 106605022009.

It is an arithmetic number, because the mean of its divisors is an integer number (106605022009).

Almost surely, 2^213210044017 is an apocalyptic number.

It is an amenable number.

213210044017 is a deficient number, since it is larger than the sum of its proper divisors (1).

213210044017 is an equidigital number, since it uses as much as digits as its factorization.

213210044017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 213210044017 its reverse (710440012312), we get a palindrome (923650056329).

The spelling of 213210044017 in words is "two hundred thirteen billion, two hundred ten million, forty-four thousand, seventeen".