11309717813 has 8 divisors (see below), whose sum is σ = 11735135832. Its totient is φ = 10890602496.

The previous prime is 11309717807. The next prime is 11309717819. The reversal of 11309717813 is 31871790311.

It is an interprime number because it is at equal distance from previous prime (11309717807) and next prime (11309717819).

It can be written as a sum of positive squares in 4 ways, for example, as 3488437969 + 7821279844 = 59063^2 + 88438^2 .

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

It is not a de Polignac number, because 11309717813 - 2¹⁸ = 11309455669 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 (11309717819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1572020 + ... + 1579197.

It is an arithmetic number, because the mean of its divisors is an integer number (1466891979).

Almost surely, 2^11309717813 is an apocalyptic number.

It is an amenable number.

11309717813 is a deficient number, since it is larger than the sum of its proper divisors (425418019).

11309717813 is an equidigital number, since it uses as much as digits as its factorization.

11309717813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151351.

The product of its (nonzero) digits is 31752, while the sum is 41.

The spelling of 11309717813 in words is "eleven billion, three hundred nine million, seven hundred seventeen thousand, eight hundred thirteen".