217052020341 has 12 divisors (see below), whose sum is σ = 337636476268. Its totient is φ = 133570473984.

The previous prime is 217052020337. The next prime is 217052020357. The reversal of 217052020341 is 143020250712.

217052020341 is a `hidden beast` number, since 21 + 70 + 520 + 20 + 34 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13692510225 + 203359510116 = 117015^2 + 450954^2 .

It is not a de Polignac number, because 217052020341 - 2² = 217052020337 is a prime.

It is a super-2 number, since 2×217052020341² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217052020321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 927572620 + ... + 927572853.

Almost surely, 2^217052020341 is an apocalyptic number.

It is an amenable number.

217052020341 is a deficient number, since it is larger than the sum of its proper divisors (120584455927).

217052020341 is a wasteful number, since it uses less digits than its factorization.

217052020341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855145492 (or 1855145489 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The spelling of 217052020341 in words is "two hundred seventeen billion, fifty-two million, twenty thousand, three hundred forty-one".