1306020063213 has 6 divisors (see below), whose sum is σ = 1886473424654. Its totient is φ = 870680042136.

The previous prime is 1306020063209. The next prime is 1306020063247. The reversal of 1306020063213 is 3123600206031.

It is a happy number.

1306020063213 is a `hidden beast` number, since 1 + 3 + 0 + 6 + 0 + 20 + 0 + 632 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1157384369124 + 148635694089 = 1075818^2 + 385533^2 .

It is not a de Polignac number, because 1306020063213 - 2² = 1306020063209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306020063263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72556670170 + ... + 72556670187.

Almost surely, 2^{1306020063213} is an apocalyptic number.

It is an amenable number.

1306020063213 is a deficient number, since it is larger than the sum of its proper divisors (580453361441).

1306020063213 is a wasteful number, since it uses less digits than its factorization.

1306020063213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145113340363 (or 145113340360 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 1306020063213 its reverse (3123600206031), we get a palindrome (4429620269244).

The spelling of 1306020063213 in words is "one trillion, three hundred six billion, twenty million, sixty-three thousand, two hundred thirteen".