213737711017 has 2 divisors, whose sum is σ = 213737711018. Its totient is φ = 213737711016.

The previous prime is 213737710999. The next prime is 213737711051. The reversal of 213737711017 is 710117737312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125511484176 + 88226226841 = 354276^2 + 297029^2 .

It is a cyclic number.

It is not a de Polignac number, because 213737711017 - 2²³ = 213729322409 is a prime.

It is a super-2 number, since 2×213737711017² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213737711717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106868855508 + 106868855509.

It is an arithmetic number, because the mean of its divisors is an integer number (106868855509).

Almost surely, 2^213737711017 is an apocalyptic number.

It is an amenable number.

213737711017 is a deficient number, since it is larger than the sum of its proper divisors (1).

213737711017 is an equidigital number, since it uses as much as digits as its factorization.

213737711017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43218, while the sum is 40.

The spelling of 213737711017 in words is "two hundred thirteen billion, seven hundred thirty-seven million, seven hundred eleven thousand, seventeen".