1306111101005 has 16 divisors (see below), whose sum is σ = 1659787426800. Its totient is φ = 983271923712.

The previous prime is 1306111100993. The next prime is 1306111101049. The reversal of 1306111101005 is 5001011116031.

It can be written as a sum of positive squares in 8 ways, for example, as 239263809316 + 1066847291689 = 489146^2 + 1032883^2 .

It is a cyclic number.

It is not a de Polignac number, because 1306111101005 - 2¹⁶ = 1306111035469 is a prime.

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, 643184 + ... + 1739513.

It is an arithmetic number, because the mean of its divisors is an integer number (103736714175).

Almost surely, 2^{1306111101005} is an apocalyptic number.

It is an amenable number.

1306111101005 is a deficient number, since it is larger than the sum of its proper divisors (353676325795).

1306111101005 is a wasteful number, since it uses less digits than its factorization.

1306111101005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389168.

The product of its (nonzero) digits is 90, while the sum is 20.

Adding to 1306111101005 its reverse (5001011116031), we get a palindrome (6307122217036).

The spelling of 1306111101005 in words is "one trillion, three hundred six billion, one hundred eleven million, one hundred one thousand, five".