1311226125305 has 8 divisors (see below), whose sum is σ = 1641883148352. Its totient is φ = 1003373034928.

The previous prime is 1311226125271. The next prime is 1311226125329. The reversal of 1311226125305 is 5035216221131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311226125305 - 2¹⁴ = 1311226108921 is a prime.

It is a super-2 number, since 2×1311226125305² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5700983039 + ... + 5700983268.

It is an arithmetic number, because the mean of its divisors is an integer number (205235393544).

Almost surely, 2^{1311226125305} is an apocalyptic number.

It is an amenable number.

1311226125305 is a deficient number, since it is larger than the sum of its proper divisors (330657023047).

1311226125305 is a wasteful number, since it uses less digits than its factorization.

1311226125305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11401966335.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 1311226125305 in words is "one trillion, three hundred eleven billion, two hundred twenty-six million, one hundred twenty-five thousand, three hundred five".