101213205663 has 16 divisors (see below), whose sum is σ = 135441802496. Its totient is φ = 67230207360.

The previous prime is 101213205593. The next prime is 101213205697. The reversal of 101213205663 is 366502312101.

It is not a de Polignac number, because 101213205663 - 2¹⁰ = 101213204639 is a prime.

It is a super-2 number, since 2×101213205663² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101213205663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101213245663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2589798 + ... + 2628588.

It is an arithmetic number, because the mean of its divisors is an integer number (8465112656).

Almost surely, 2^101213205663 is an apocalyptic number.

101213205663 is a deficient number, since it is larger than the sum of its proper divisors (34228596833).

101213205663 is a wasteful number, since it uses less digits than its factorization.

101213205663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41934.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 101213205663 its reverse (366502312101), we get a palindrome (467715517764).

The spelling of 101213205663 in words is "one hundred one billion, two hundred thirteen million, two hundred five thousand, six hundred sixty-three".