1306112113505 has 4 divisors (see below), whose sum is σ = 1567334536212. Its totient is φ = 1044889690800.

The previous prime is 1306112113477. The next prime is 1306112113511. The reversal of 1306112113505 is 5053112116031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 193304432896 + 1112807680609 = 439664^2 + 1054897^2 .

It is not a de Polignac number, because 1306112113505 - 2⁶ = 1306112113441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130611211346 + ... + 130611211355.

It is an arithmetic number, because the mean of its divisors is an integer number (391833634053).

Almost surely, 2^{1306112113505} is an apocalyptic number.

It is an amenable number.

1306112113505 is a deficient number, since it is larger than the sum of its proper divisors (261222422707).

1306112113505 is an equidigital number, since it uses as much as digits as its factorization.

1306112113505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261222422706.

The product of its (nonzero) digits is 2700, while the sum is 29.

Adding to 1306112113505 its reverse (5053112116031), we get a palindrome (6359224229536).

The spelling of 1306112113505 in words is "one trillion, three hundred six billion, one hundred twelve million, one hundred thirteen thousand, five hundred five".