201830211365 has 16 divisors (see below), whose sum is σ = 242825472000. Its totient is φ = 161045037312.

The previous prime is 201830211347. The next prime is 201830211371. The reversal of 201830211365 is 563112038102.

It is a cyclic number.

It is not a de Polignac number, because 201830211365 - 2¹⁰ = 201830210341 is a prime.

It is a super-3 number, since 3×201830211365³ (a number of 35 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4920461 + ... + 4961309.

It is an arithmetic number, because the mean of its divisors is an integer number (15176592000).

Almost surely, 2^201830211365 is an apocalyptic number.

It is an amenable number.

201830211365 is a deficient number, since it is larger than the sum of its proper divisors (40995260635).

201830211365 is a wasteful number, since it uses less digits than its factorization.

201830211365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43396.

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 201830211365 its reverse (563112038102), we get a palindrome (764942249467).

The spelling of 201830211365 in words is "two hundred one billion, eight hundred thirty million, two hundred eleven thousand, three hundred sixty-five".